{"id":1860,"date":"2026-02-07T19:48:41","date_gmt":"2026-02-07T10:48:41","guid":{"rendered":"https:\/\/dev.rftcjapan.org\/?page_id=1860"},"modified":"2026-06-03T13:58:32","modified_gmt":"2026-06-03T04:58:32","slug":"the-stages-of-breast-cancer","status":"publish","type":"page","link":"https:\/\/rftcjapan.org\/en\/about-breast-cancer\/the-stages-of-breast-cancer\/","title":{"rendered":"The Stages of Breast Cancer"},"content":{"rendered":"\t\t<div data-elementor-type=\"wp-page\" data-elementor-id=\"1860\" class=\"elementor elementor-1860\" data-elementor-post-type=\"page\">\n\t\t\t\t<div class=\"elementor-element elementor-element-6d7e1b5 e-flex e-con-boxed e-con e-parent\" data-id=\"6d7e1b5\" data-element_type=\"container\" data-e-type=\"container\">\n\t\t\t\t\t<div class=\"e-con-inner\">\n\t\t<div class=\"elementor-element elementor-element-61cbf72 e-con-full elementor-hidden-mobile e-flex e-con e-child\" data-id=\"61cbf72\" data-element_type=\"container\" data-e-type=\"container\">\n\t\t<div class=\"elementor-element elementor-element-1b236cf e-con-full e-flex e-con e-child\" data-id=\"1b236cf\" data-element_type=\"container\" data-e-type=\"container\" data-settings=\"{&quot;sticky&quot;:&quot;top&quot;,&quot;sticky_on&quot;:[&quot;desktop&quot;,&quot;tablet&quot;],&quot;sticky_offset&quot;:100,&quot;sticky_parent&quot;:&quot;yes&quot;,&quot;sticky_effects_offset&quot;:0,&quot;sticky_anchor_link_offset&quot;:0}\">\n\t\t\t\t<div class=\"elementor-element elementor-element-b2ce200 elementor-toc--minimized-on-tablet elementor-widget elementor-widget-table-of-contents\" data-id=\"b2ce200\" data-element_type=\"widget\" data-e-type=\"widget\" data-settings=\"{&quot;headings_by_tags&quot;:[&quot;h2&quot;],&quot;exclude_headings_by_selector&quot;:[],&quot;marker_view&quot;:&quot;numbers&quot;,&quot;minimize_box&quot;:&quot;yes&quot;,&quot;minimized_on&quot;:&quot;tablet&quot;,&quot;hierarchical_view&quot;:&quot;yes&quot;,&quot;min_height&quot;:{&quot;unit&quot;:&quot;px&quot;,&quot;size&quot;:&quot;&quot;,&quot;sizes&quot;:[]},&quot;min_height_tablet&quot;:{&quot;unit&quot;:&quot;px&quot;,&quot;size&quot;:&quot;&quot;,&quot;sizes&quot;:[]},&quot;min_height_mobile&quot;:{&quot;unit&quot;:&quot;px&quot;,&quot;size&quot;:&quot;&quot;,&quot;sizes&quot;:[]}}\" data-widget_type=\"table-of-contents.default\">\n\t\t\t\t\t\t\t\t\t<div class=\"elementor-toc__header\">\n\t\t\t\t\t\t<h2 class=\"elementor-toc__header-title\">\n\t\t\t\tTable of Contents\t\t\t<\/h2>\n\t\t\t\t\t\t\t\t\t\t<div class=\"elementor-toc__toggle-button elementor-toc__toggle-button--expand\" role=\"button\" tabindex=\"0\" aria-controls=\"elementor-toc__b2ce200\" aria-expanded=\"true\" aria-label=\"Open table of contents\"><svg aria-hidden=\"true\" class=\"e-font-icon-svg e-fas-angle-down\" viewBox=\"0 0 320 512\" xmlns=\"http:\/\/www.w3.org\/2000\/svg\"><path d=\"M143 352.3L7 216.3c-9.4-9.4-9.4-24.6 0-33.9l22.6-22.6c9.4-9.4 24.6-9.4 33.9 0l96.4 96.4 96.4-96.4c9.4-9.4 24.6-9.4 33.9 0l22.6 22.6c9.4 9.4 9.4 24.6 0 33.9l-136 136c-9.2 9.4-24.4 9.4-33.8 0z\"><\/path><\/svg><\/div>\n\t\t\t\t<div class=\"elementor-toc__toggle-button elementor-toc__toggle-button--collapse\" role=\"button\" tabindex=\"0\" aria-controls=\"elementor-toc__b2ce200\" aria-expanded=\"true\" aria-label=\"Close table of contents\"><svg aria-hidden=\"true\" class=\"e-font-icon-svg e-fas-angle-up\" viewBox=\"0 0 320 512\" xmlns=\"http:\/\/www.w3.org\/2000\/svg\"><path d=\"M177 159.7l136 136c9.4 9.4 9.4 24.6 0 33.9l-22.6 22.6c-9.4 9.4-24.6 9.4-33.9 0L160 255.9l-96.4 96.4c-9.4 9.4-24.6 9.4-33.9 0L7 329.7c-9.4-9.4-9.4-24.6 0-33.9l136-136c9.4-9.5 24.6-9.5 34-.1z\"><\/path><\/svg><\/div>\n\t\t\t\t\t<\/div>\n\t\t\t\t<div id=\"elementor-toc__b2ce200\" class=\"elementor-toc__body\">\n\t\t\t<div class=\"elementor-toc__spinner-container\">\n\t\t\t\t<svg class=\"elementor-toc__spinner eicon-animation-spin e-font-icon-svg e-eicon-loading\" aria-hidden=\"true\" viewBox=\"0 0 1000 1000\" xmlns=\"http:\/\/www.w3.org\/2000\/svg\"><path d=\"M500 975V858C696 858 858 696 858 500S696 142 500 142 142 304 142 500H25C25 237 238 25 500 25S975 237 975 500 763 975 500 975Z\"><\/path><\/svg>\t\t\t<\/div>\n\t\t<\/div>\n\t\t\t\t\t\t<\/div>\n\t\t\t\t<div class=\"elementor-element elementor-element-5f9bf4b elementor-widget elementor-widget-heading\" data-id=\"5f9bf4b\" data-element_type=\"widget\" data-e-type=\"widget\" data-widget_type=\"heading.default\">\n\t\t\t\t\t<h6 class=\"elementor-heading-title elementor-size-default\">About Breast Cancer<\/h6>\t\t\t\t<\/div>\n\t\t\t\t<div class=\"elementor-element elementor-element-96b566a elementor-widget elementor-widget-template\" data-id=\"96b566a\" data-element_type=\"widget\" data-e-type=\"widget\" data-widget_type=\"template.default\">\n\t\t\t\t<div class=\"elementor-widget-container\">\n\t\t\t\t\t\t\t<div class=\"elementor-template\">\n\t\t\t\t\t<div data-elementor-type=\"section\" data-elementor-id=\"3044\" class=\"elementor elementor-3044\" data-elementor-post-type=\"elementor_library\">\n\t\t\t<div role=\"region\" aria-labelledby=\"e-n-accordion-item-2330\" class=\"elementor-element elementor-element-fd830c6 e-con-full e-grid e-con e-child\" data-id=\"fd830c6\" data-element_type=\"container\" data-e-type=\"container\">\n\t\t<div role=\"region\" aria-labelledby=\"e-n-accordion-item-2330\" class=\"elementor-element elementor-element-3717cd6 e-con-full e-flex e-con e-child\" data-id=\"3717cd6\" data-element_type=\"container\" data-e-type=\"container\">\n\t\t\t\t<div class=\"elementor-element elementor-element-e6c4d06 elementor-widget elementor-widget-heading\" data-id=\"e6c4d06\" data-element_type=\"widget\" data-e-type=\"widget\" data-widget_type=\"heading.default\">\n\t\t\t\t\t<h4 class=\"elementor-heading-title elementor-size-default\">Breast Cancer Basics<\/h4>\t\t\t\t<\/div>\n\t\t\t\t<div class=\"elementor-element elementor-element-c84b33f elementor-nav-menu--dropdown-none elementor-widget elementor-widget-nav-menu\" data-id=\"c84b33f\" data-element_type=\"widget\" data-e-type=\"widget\" data-settings=\"{&quot;layout&quot;:&quot;vertical&quot;,&quot;submenu_icon&quot;:{&quot;value&quot;:&quot;&lt;i aria-hidden=\\&quot;true\\&quot; class=\\&quot;\\&quot;&gt;&lt;\\\/i&gt;&quot;,&quot;library&quot;:&quot;&quot;}}\" data-widget_type=\"nav-menu.default\">\n\t\t\t\t\t\t\t\t<nav aria-label=\"\u30e1\u30cb\u30e5\u30fc\" class=\"elementor-nav-menu--main elementor-nav-menu__container elementor-nav-menu--layout-vertical e--pointer-none\">\n\t\t\t\t<ul id=\"menu-1-c84b33f\" class=\"elementor-nav-menu sm-vertical\"><li class=\"menu-item menu-item-type-post_type menu-item-object-page menu-item-11379\"><a href=\"https:\/\/rftcjapan.org\/en\/about-breast-cancer\/what-is-breast-cancer\/\" class=\"elementor-item\">What is Breast Cancer?<\/a><\/li>\n<li class=\"menu-item menu-item-type-post_type menu-item-object-page menu-item-11380\"><a href=\"https:\/\/rftcjapan.org\/en\/about-breast-cancer\/breast-cancer-statistics-global-japan\/\" class=\"elementor-item\">Breast Cancer Statistics (Global &amp; Japan)<\/a><\/li>\n<li class=\"menu-item menu-item-type-post_type menu-item-object-page menu-item-11381\"><a href=\"https:\/\/rftcjapan.org\/en\/about-breast-cancer\/understanding-the-risk-of-breast-cancer\/\" class=\"elementor-item\">Understanding the Risk of Breast Cancer<\/a><\/li>\n<\/ul>\t\t\t<\/nav>\n\t\t\t\t\t\t<nav class=\"elementor-nav-menu--dropdown elementor-nav-menu__container\" aria-hidden=\"true\">\n\t\t\t\t<ul id=\"menu-2-c84b33f\" class=\"elementor-nav-menu sm-vertical\"><li class=\"menu-item menu-item-type-post_type menu-item-object-page menu-item-11379\"><a href=\"https:\/\/rftcjapan.org\/en\/about-breast-cancer\/what-is-breast-cancer\/\" class=\"elementor-item\" tabindex=\"-1\">What is Breast Cancer?<\/a><\/li>\n<li class=\"menu-item menu-item-type-post_type menu-item-object-page menu-item-11380\"><a href=\"https:\/\/rftcjapan.org\/en\/about-breast-cancer\/breast-cancer-statistics-global-japan\/\" class=\"elementor-item\" tabindex=\"-1\">Breast Cancer Statistics (Global &amp; Japan)<\/a><\/li>\n<li class=\"menu-item menu-item-type-post_type menu-item-object-page menu-item-11381\"><a href=\"https:\/\/rftcjapan.org\/en\/about-breast-cancer\/understanding-the-risk-of-breast-cancer\/\" class=\"elementor-item\" tabindex=\"-1\">Understanding the Risk of Breast Cancer<\/a><\/li>\n<\/ul>\t\t\t<\/nav>\n\t\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t<div role=\"region\" aria-labelledby=\"e-n-accordion-item-2330\" class=\"elementor-element elementor-element-67a9bd1 e-con-full e-flex e-con e-child\" data-id=\"67a9bd1\" data-element_type=\"container\" data-e-type=\"container\">\n\t\t\t\t<div class=\"elementor-element elementor-element-ed0de9e elementor-widget elementor-widget-heading\" data-id=\"ed0de9e\" data-element_type=\"widget\" data-e-type=\"widget\" data-widget_type=\"heading.default\">\n\t\t\t\t\t<h4 class=\"elementor-heading-title elementor-size-default\">Diagnosis &amp; Staging<\/h4>\t\t\t\t<\/div>\n\t\t\t\t<div class=\"elementor-element elementor-element-c981917 elementor-nav-menu--dropdown-none elementor-widget elementor-widget-nav-menu\" data-id=\"c981917\" data-element_type=\"widget\" data-e-type=\"widget\" data-settings=\"{&quot;layout&quot;:&quot;vertical&quot;,&quot;submenu_icon&quot;:{&quot;value&quot;:&quot;&lt;svg aria-hidden=\\&quot;true\\&quot; class=\\&quot;e-font-icon-svg e-fas-caret-down\\&quot; viewBox=\\&quot;0 0 320 512\\&quot; xmlns=\\&quot;http:\\\/\\\/www.w3.org\\\/2000\\\/svg\\&quot;&gt;&lt;path d=\\&quot;M31.3 192h257.3c17.8 0 26.7 21.5 14.1 34.1L174.1 354.8c-7.8 7.8-20.5 7.8-28.3 0L17.2 226.1C4.6 213.5 13.5 192 31.3 192z\\&quot;&gt;&lt;\\\/path&gt;&lt;\\\/svg&gt;&quot;,&quot;library&quot;:&quot;fa-solid&quot;}}\" data-widget_type=\"nav-menu.default\">\n\t\t\t\t\t\t\t\t<nav aria-label=\"\u30e1\u30cb\u30e5\u30fc\" class=\"elementor-nav-menu--main elementor-nav-menu__container elementor-nav-menu--layout-vertical e--pointer-none\">\n\t\t\t\t<ul id=\"menu-1-c981917\" class=\"elementor-nav-menu sm-vertical\"><li class=\"menu-item menu-item-type-post_type menu-item-object-page menu-item-2521\"><a href=\"https:\/\/rftcjapan.org\/en\/about-breast-cancer\/signs-and-symptoms\/\" class=\"elementor-item\">Signs and Symptoms<\/a><\/li>\n<li class=\"menu-item menu-item-type-post_type menu-item-object-page menu-item-2522\"><a href=\"https:\/\/rftcjapan.org\/en\/about-breast-cancer\/the-stages-of-breast-cancer\/\" class=\"elementor-item\">The Stages of Breast Cancer<\/a><\/li>\n<li class=\"menu-item menu-item-type-post_type menu-item-object-page menu-item-2523\"><a href=\"https:\/\/rftcjapan.org\/en\/about-breast-cancer\/tumor-size-and-staging\/\" class=\"elementor-item\">Tumor Size and Staging<\/a><\/li>\n<li class=\"menu-item menu-item-type-post_type menu-item-object-page menu-item-2520\"><a href=\"https:\/\/rftcjapan.org\/en\/about-breast-cancer\/metastases-and-staging\/\" class=\"elementor-item\">Metastases and Staging<\/a><\/li>\n<li class=\"menu-item menu-item-type-post_type menu-item-object-page menu-item-2519\"><a href=\"https:\/\/rftcjapan.org\/en\/about-breast-cancer\/early-stage-breast-cancers-non-invasive\/\" class=\"elementor-item\">Early-Stage Breast Cancers (Non-invasive)<\/a><\/li>\n<\/ul>\t\t\t<\/nav>\n\t\t\t\t\t\t<nav class=\"elementor-nav-menu--dropdown elementor-nav-menu__container\" aria-hidden=\"true\">\n\t\t\t\t<ul id=\"menu-2-c981917\" class=\"elementor-nav-menu sm-vertical\"><li class=\"menu-item menu-item-type-post_type menu-item-object-page menu-item-2521\"><a href=\"https:\/\/rftcjapan.org\/en\/about-breast-cancer\/signs-and-symptoms\/\" class=\"elementor-item\" tabindex=\"-1\">Signs and Symptoms<\/a><\/li>\n<li class=\"menu-item menu-item-type-post_type menu-item-object-page menu-item-2522\"><a href=\"https:\/\/rftcjapan.org\/en\/about-breast-cancer\/the-stages-of-breast-cancer\/\" class=\"elementor-item\" tabindex=\"-1\">The Stages of Breast Cancer<\/a><\/li>\n<li class=\"menu-item menu-item-type-post_type menu-item-object-page menu-item-2523\"><a href=\"https:\/\/rftcjapan.org\/en\/about-breast-cancer\/tumor-size-and-staging\/\" class=\"elementor-item\" tabindex=\"-1\">Tumor Size and Staging<\/a><\/li>\n<li class=\"menu-item menu-item-type-post_type menu-item-object-page menu-item-2520\"><a href=\"https:\/\/rftcjapan.org\/en\/about-breast-cancer\/metastases-and-staging\/\" class=\"elementor-item\" tabindex=\"-1\">Metastases and Staging<\/a><\/li>\n<li class=\"menu-item menu-item-type-post_type menu-item-object-page menu-item-2519\"><a href=\"https:\/\/rftcjapan.org\/en\/about-breast-cancer\/early-stage-breast-cancers-non-invasive\/\" class=\"elementor-item\" tabindex=\"-1\">Early-Stage Breast Cancers (Non-invasive)<\/a><\/li>\n<\/ul>\t\t\t<\/nav>\n\t\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t<div role=\"region\" aria-labelledby=\"e-n-accordion-item-2330\" class=\"elementor-element elementor-element-dd578e0 e-con-full e-flex e-con e-child\" data-id=\"dd578e0\" data-element_type=\"container\" data-e-type=\"container\">\n\t\t\t\t<div class=\"elementor-element elementor-element-6342a8d elementor-widget elementor-widget-heading\" data-id=\"6342a8d\" data-element_type=\"widget\" data-e-type=\"widget\" data-widget_type=\"heading.default\">\n\t\t\t\t\t<h4 class=\"elementor-heading-title elementor-size-default\">Risk Factors &amp; Genetics<\/h4>\t\t\t\t<\/div>\n\t\t\t\t<div class=\"elementor-element elementor-element-857c29f elementor-nav-menu--dropdown-none elementor-widget elementor-widget-nav-menu\" data-id=\"857c29f\" data-element_type=\"widget\" data-e-type=\"widget\" data-settings=\"{&quot;layout&quot;:&quot;vertical&quot;,&quot;submenu_icon&quot;:{&quot;value&quot;:&quot;&lt;svg aria-hidden=\\&quot;true\\&quot; class=\\&quot;e-font-icon-svg e-fas-caret-down\\&quot; viewBox=\\&quot;0 0 320 512\\&quot; xmlns=\\&quot;http:\\\/\\\/www.w3.org\\\/2000\\\/svg\\&quot;&gt;&lt;path d=\\&quot;M31.3 192h257.3c17.8 0 26.7 21.5 14.1 34.1L174.1 354.8c-7.8 7.8-20.5 7.8-28.3 0L17.2 226.1C4.6 213.5 13.5 192 31.3 192z\\&quot;&gt;&lt;\\\/path&gt;&lt;\\\/svg&gt;&quot;,&quot;library&quot;:&quot;fa-solid&quot;}}\" data-widget_type=\"nav-menu.default\">\n\t\t\t\t\t\t\t\t<nav aria-label=\"\u30e1\u30cb\u30e5\u30fc\" class=\"elementor-nav-menu--main elementor-nav-menu__container elementor-nav-menu--layout-vertical e--pointer-none\">\n\t\t\t\t<ul id=\"menu-1-857c29f\" class=\"elementor-nav-menu sm-vertical\"><li class=\"menu-item menu-item-type-post_type menu-item-object-page menu-item-2525\"><a href=\"https:\/\/rftcjapan.org\/en\/about-breast-cancer\/brca1-and-brca2-mutations-in-men\/\" class=\"elementor-item\">BRCA1 and BRCA2 Mutations in Men<\/a><\/li>\n<li class=\"menu-item menu-item-type-post_type menu-item-object-page menu-item-2526\"><a href=\"https:\/\/rftcjapan.org\/en\/about-breast-cancer\/brca1-and-brca2-mutations-in-women\/\" class=\"elementor-item\">BRCA1 and BRCA2 Mutations in Women<\/a><\/li>\n<li class=\"menu-item menu-item-type-post_type menu-item-object-page menu-item-2528\"><a href=\"https:\/\/rftcjapan.org\/en\/about-breast-cancer\/lobular-carcinoma-in-situ-lcis\/\" class=\"elementor-item\">Lobular Carcinoma in Situ (LCIS)<\/a><\/li>\n<li class=\"menu-item menu-item-type-post_type menu-item-object-page menu-item-2527\"><a href=\"https:\/\/rftcjapan.org\/en\/about-breast-cancer\/early-life-exposures\/\" class=\"elementor-item\">Early Life Exposures<\/a><\/li>\n<\/ul>\t\t\t<\/nav>\n\t\t\t\t\t\t<nav class=\"elementor-nav-menu--dropdown elementor-nav-menu__container\" aria-hidden=\"true\">\n\t\t\t\t<ul id=\"menu-2-857c29f\" class=\"elementor-nav-menu sm-vertical\"><li class=\"menu-item menu-item-type-post_type menu-item-object-page menu-item-2525\"><a href=\"https:\/\/rftcjapan.org\/en\/about-breast-cancer\/brca1-and-brca2-mutations-in-men\/\" class=\"elementor-item\" tabindex=\"-1\">BRCA1 and BRCA2 Mutations in Men<\/a><\/li>\n<li class=\"menu-item menu-item-type-post_type menu-item-object-page menu-item-2526\"><a href=\"https:\/\/rftcjapan.org\/en\/about-breast-cancer\/brca1-and-brca2-mutations-in-women\/\" class=\"elementor-item\" tabindex=\"-1\">BRCA1 and BRCA2 Mutations in Women<\/a><\/li>\n<li class=\"menu-item menu-item-type-post_type menu-item-object-page menu-item-2528\"><a href=\"https:\/\/rftcjapan.org\/en\/about-breast-cancer\/lobular-carcinoma-in-situ-lcis\/\" class=\"elementor-item\" tabindex=\"-1\">Lobular Carcinoma in Situ (LCIS)<\/a><\/li>\n<li class=\"menu-item menu-item-type-post_type menu-item-object-page menu-item-2527\"><a href=\"https:\/\/rftcjapan.org\/en\/about-breast-cancer\/early-life-exposures\/\" class=\"elementor-item\" tabindex=\"-1\">Early Life Exposures<\/a><\/li>\n<\/ul>\t\t\t<\/nav>\n\t\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t<div role=\"region\" aria-labelledby=\"e-n-accordion-item-2330\" class=\"elementor-element elementor-element-8382bf4 e-con-full e-flex e-con e-child\" data-id=\"8382bf4\" data-element_type=\"container\" data-e-type=\"container\">\n\t\t\t\t<div class=\"elementor-element elementor-element-f24ff62 elementor-widget elementor-widget-heading\" data-id=\"f24ff62\" data-element_type=\"widget\" data-e-type=\"widget\" data-widget_type=\"heading.default\">\n\t\t\t\t\t<h4 class=\"elementor-heading-title elementor-size-default\">Benign Breast Conditions<\/h4>\t\t\t\t<\/div>\n\t\t\t\t<div class=\"elementor-element elementor-element-e396cf6 elementor-nav-menu--dropdown-none elementor-widget elementor-widget-nav-menu\" data-id=\"e396cf6\" data-element_type=\"widget\" data-e-type=\"widget\" data-settings=\"{&quot;layout&quot;:&quot;vertical&quot;,&quot;submenu_icon&quot;:{&quot;value&quot;:&quot;&lt;svg aria-hidden=\\&quot;true\\&quot; class=\\&quot;e-font-icon-svg e-fas-caret-down\\&quot; viewBox=\\&quot;0 0 320 512\\&quot; xmlns=\\&quot;http:\\\/\\\/www.w3.org\\\/2000\\\/svg\\&quot;&gt;&lt;path d=\\&quot;M31.3 192h257.3c17.8 0 26.7 21.5 14.1 34.1L174.1 354.8c-7.8 7.8-20.5 7.8-28.3 0L17.2 226.1C4.6 213.5 13.5 192 31.3 192z\\&quot;&gt;&lt;\\\/path&gt;&lt;\\\/svg&gt;&quot;,&quot;library&quot;:&quot;fa-solid&quot;}}\" data-widget_type=\"nav-menu.default\">\n\t\t\t\t\t\t\t\t<nav aria-label=\"\u30e1\u30cb\u30e5\u30fc\" class=\"elementor-nav-menu--main elementor-nav-menu__container elementor-nav-menu--layout-vertical e--pointer-none\">\n\t\t\t\t<ul id=\"menu-1-e396cf6\" class=\"elementor-nav-menu sm-vertical\"><li class=\"menu-item menu-item-type-post_type menu-item-object-page menu-item-7721\"><a href=\"https:\/\/rftcjapan.org\/en\/about-breast-cancer\/chemo-side-effects\/\" class=\"elementor-item\">Chemo side effects<\/a><\/li>\n<li class=\"menu-item menu-item-type-post_type menu-item-object-page menu-item-2529\"><a href=\"https:\/\/rftcjapan.org\/en\/about-breast-cancer\/patient-faq\/\" class=\"elementor-item\">Patient FAQ<\/a><\/li>\n<\/ul>\t\t\t<\/nav>\n\t\t\t\t\t\t<nav class=\"elementor-nav-menu--dropdown elementor-nav-menu__container\" aria-hidden=\"true\">\n\t\t\t\t<ul id=\"menu-2-e396cf6\" class=\"elementor-nav-menu sm-vertical\"><li class=\"menu-item menu-item-type-post_type menu-item-object-page menu-item-7721\"><a href=\"https:\/\/rftcjapan.org\/en\/about-breast-cancer\/chemo-side-effects\/\" class=\"elementor-item\" tabindex=\"-1\">Chemo side effects<\/a><\/li>\n<li class=\"menu-item menu-item-type-post_type menu-item-object-page menu-item-2529\"><a href=\"https:\/\/rftcjapan.org\/en\/about-breast-cancer\/patient-faq\/\" class=\"elementor-item\" tabindex=\"-1\">Patient FAQ<\/a><\/li>\n<\/ul>\t\t\t<\/nav>\n\t\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t<div class=\"elementor-element elementor-element-2282914 e-con-full e-flex e-con e-child\" data-id=\"2282914\" data-element_type=\"container\" data-e-type=\"container\">\n\t\t\t\t<div class=\"elementor-element elementor-element-5638f5f elementor-widget elementor-widget-heading\" data-id=\"5638f5f\" data-element_type=\"widget\" data-e-type=\"widget\" data-widget_type=\"heading.default\">\n\t\t\t\t\t<h1 class=\"elementor-heading-title elementor-size-default\">The Stages of Breast Cancer<\/h1>\t\t\t\t<\/div>\n\t\t\t\t<div class=\"elementor-element elementor-element-6b184c3 elementor-widget elementor-widget-text-editor\" data-id=\"6b184c3\" data-element_type=\"widget\" data-e-type=\"widget\" data-widget_type=\"text-editor.default\">\n\t\t\t\t\t\t\t\t\t<p>Breast cancer is divided into <strong>stages<\/strong> based on the size of the tumor, whether it has spread to nearby lymph nodes, and whether it has spread to other parts of the body. Staging helps doctors determine the best treatment and gives patients a clearer understanding of their diagnosis.<\/p>\t\t\t\t\t\t\t\t<\/div>\n\t\t\t\t<div class=\"elementor-element elementor-element-1f8a8e9 color-bullet-list elementor-widget elementor-widget-text-editor\" data-id=\"1f8a8e9\" data-element_type=\"widget\" data-e-type=\"widget\" data-widget_type=\"text-editor.default\">\n\t\t\t\t\t\t\t\t\t<p>Doctors use a system called <strong>TNM:<\/strong><\/p><ul><li><strong>T (Tumor):<\/strong> Size of the main tumor<\/li><li><strong>N (Nodes):<\/strong> Whether cancer has spread to nearby lymph nodes<\/li><li><strong>M (Metastasis):<\/strong> Whether cancer has spread to distant organs<\/li><\/ul><p>From this, breast cancer is grouped into Stage 0 through Stage IV.<\/p>\t\t\t\t\t\t\t\t<\/div>\n\t\t<div class=\"elementor-element elementor-element-feb8b37 e-grid e-con-full e-con e-child\" data-id=\"feb8b37\" data-element_type=\"container\" data-e-type=\"container\">\n\t\t\t\t<div class=\"elementor-element elementor-element-fd81272 elementor-widget elementor-widget-image\" data-id=\"fd81272\" data-element_type=\"widget\" data-e-type=\"widget\" data-widget_type=\"image.default\">\n\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t<img decoding=\"async\" width=\"62\" height=\"63\" src=\"https:\/\/rftcjapan.org\/wpdata\/wp-content\/uploads\/2026\/02\/stage-0-breastcancer-Vectorimage.svg\" class=\"attachment-large size-large wp-image-6536\" alt=\"\" \/>\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t<\/div>\n\t\t<div class=\"elementor-element elementor-element-c2a6f18 e-con-full e-flex e-con e-child\" data-id=\"c2a6f18\" data-element_type=\"container\" data-e-type=\"container\">\n\t\t\t\t<div class=\"elementor-element elementor-element-eff6c9a elementor-widget elementor-widget-image\" data-id=\"eff6c9a\" data-element_type=\"widget\" data-e-type=\"widget\" data-widget_type=\"image.default\">\n\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t<img decoding=\"async\" width=\"61\" height=\"63\" src=\"https:\/\/rftcjapan.org\/wpdata\/wp-content\/uploads\/2026\/02\/stage-1-breastcancer-Vectorimage.svg\" class=\"attachment-large size-large wp-image-6545\" alt=\"\" \/>\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t<div class=\"elementor-element elementor-element-9da0cb5 e-con-full e-flex e-con e-child\" data-id=\"9da0cb5\" data-element_type=\"container\" data-e-type=\"container\">\n\t\t\t\t<div class=\"elementor-element elementor-element-1fd4292 elementor-widget elementor-widget-image\" data-id=\"1fd4292\" data-element_type=\"widget\" data-e-type=\"widget\" data-widget_type=\"image.default\">\n\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t<img decoding=\"async\" width=\"61\" height=\"63\" src=\"https:\/\/rftcjapan.org\/wpdata\/wp-content\/uploads\/2026\/02\/stage-2-breastcancer-Vectorimage.svg\" class=\"attachment-large size-large wp-image-6543\" alt=\"\" \/>\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t<div class=\"elementor-element elementor-element-1c0d794 e-con-full e-flex e-con e-child\" data-id=\"1c0d794\" data-element_type=\"container\" data-e-type=\"container\">\n\t\t\t\t<div class=\"elementor-element elementor-element-778bacf elementor-widget elementor-widget-image\" data-id=\"778bacf\" data-element_type=\"widget\" data-e-type=\"widget\" data-widget_type=\"image.default\">\n\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t<img loading=\"lazy\" decoding=\"async\" width=\"61\" height=\"63\" src=\"https:\/\/rftcjapan.org\/wpdata\/wp-content\/uploads\/2026\/02\/stage-3-breastcancer-Vectorimage.svg\" class=\"attachment-large size-large wp-image-6546\" alt=\"\" \/>\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t<div class=\"elementor-element elementor-element-4c9b41d e-con-full e-flex e-con e-child\" data-id=\"4c9b41d\" data-element_type=\"container\" data-e-type=\"container\">\n\t\t\t\t<div class=\"elementor-element elementor-element-b99f7ec elementor-widget elementor-widget-image\" data-id=\"b99f7ec\" data-element_type=\"widget\" data-e-type=\"widget\" data-widget_type=\"image.default\">\n\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t<img loading=\"lazy\" decoding=\"async\" width=\"62\" height=\"64\" src=\"https:\/\/rftcjapan.org\/wpdata\/wp-content\/uploads\/2026\/02\/stage-4-breastcancer-Vectorimage.svg\" class=\"attachment-large size-large wp-image-6550\" alt=\"\" \/>\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t<div class=\"elementor-element elementor-element-4b554a5 e-con-full e-flex e-con e-child\" data-id=\"4b554a5\" data-element_type=\"container\" data-e-type=\"container\">\n\t\t\t\t<div class=\"elementor-element elementor-element-2641b3a elementor-widget elementor-widget-heading\" data-id=\"2641b3a\" data-element_type=\"widget\" data-e-type=\"widget\" data-widget_type=\"heading.default\">\n\t\t\t\t\t<h2 class=\"elementor-heading-title elementor-size-default\">Stage 0 <\/h2>\t\t\t\t<\/div>\n\t\t\t\t<div class=\"elementor-element elementor-element-bade983 elementor-widget elementor-widget-heading\" data-id=\"bade983\" data-element_type=\"widget\" data-e-type=\"widget\" data-widget_type=\"heading.default\">\n\t\t\t\t\t<h3 class=\"elementor-heading-title elementor-size-default\">Non-Invasive (Carcinoma in Situ)<\/h3>\t\t\t\t<\/div>\n\t\t\t\t<div class=\"elementor-element elementor-element-2055574 color-bullet-list elementor-widget elementor-widget-text-editor\" data-id=\"2055574\" data-element_type=\"widget\" data-e-type=\"widget\" data-widget_type=\"text-editor.default\">\n\t\t\t\t\t\t\t\t\t<ul><li>Cancer cells are present but <strong>have not spread outside the milk ducts or lobules<\/strong><\/li><li>Often referred to as <strong>DCIS (Ductal Carcinoma in Situ)<\/strong><\/li><li><strong>Highly treatable and curable<\/strong><\/li><li>Usually detected by mammogram<\/li><\/ul>\t\t\t\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t<div class=\"elementor-element elementor-element-9352181 e-con-full e-flex e-con e-child\" data-id=\"9352181\" data-element_type=\"container\" data-e-type=\"container\">\n\t\t\t\t<div class=\"elementor-element elementor-element-43f5232 elementor-widget elementor-widget-heading\" data-id=\"43f5232\" data-element_type=\"widget\" data-e-type=\"widget\" data-widget_type=\"heading.default\">\n\t\t\t\t\t<h2 class=\"elementor-heading-title elementor-size-default\">Stage I<\/h2>\t\t\t\t<\/div>\n\t\t\t\t<div class=\"elementor-element elementor-element-6c21ab9 elementor-widget elementor-widget-heading\" data-id=\"6c21ab9\" data-element_type=\"widget\" data-e-type=\"widget\" data-widget_type=\"heading.default\">\n\t\t\t\t\t<h3 class=\"elementor-heading-title elementor-size-default\">Early-Stage Invasive Cancer<\/h3>\t\t\t\t<\/div>\n\t\t\t\t<div class=\"elementor-element elementor-element-ae96430 color-bullet-list elementor-widget elementor-widget-text-editor\" data-id=\"ae96430\" data-element_type=\"widget\" data-e-type=\"widget\" data-widget_type=\"text-editor.default\">\n\t\t\t\t\t\t\t\t\t<ul><li>Tumor is small <strong>(2 cm or less)<\/strong><\/li><li>Cancer <strong>may or may not have spread to nearby lymph nodes<\/strong><\/li><li>Very high survival rate<\/li><li>Treatment is usually surgery followed by radiation and\/or medication<\/li><\/ul>\t\t\t\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t<div class=\"elementor-element elementor-element-c49f14c e-con-full e-flex e-con e-child\" data-id=\"c49f14c\" data-element_type=\"container\" data-e-type=\"container\">\n\t\t\t\t<div class=\"elementor-element elementor-element-e872d39 elementor-widget elementor-widget-heading\" data-id=\"e872d39\" data-element_type=\"widget\" data-e-type=\"widget\" data-widget_type=\"heading.default\">\n\t\t\t\t\t<h2 class=\"elementor-heading-title elementor-size-default\">Stage II<\/h2>\t\t\t\t<\/div>\n\t\t\t\t<div class=\"elementor-element elementor-element-267235f elementor-widget elementor-widget-heading\" data-id=\"267235f\" data-element_type=\"widget\" data-e-type=\"widget\" data-widget_type=\"heading.default\">\n\t\t\t\t\t<h3 class=\"elementor-heading-title elementor-size-default\">Local Spread<\/h3>\t\t\t\t<\/div>\n\t\t\t\t<div class=\"elementor-element elementor-element-b3f4afd color-bullet-list elementor-widget elementor-widget-text-editor\" data-id=\"b3f4afd\" data-element_type=\"widget\" data-e-type=\"widget\" data-widget_type=\"text-editor.default\">\n\t\t\t\t\t\t\t\t\t<ul><li>Tumor may be:<br \/>&#8211; Larger than 2 cm, <strong>or<\/strong><br \/>&#8211; Found in nearby lymph nodes<\/li><li>Still considered <strong>highly treatable<\/strong><\/li><li>Often treated with surgery, radiation, and systemic therapies (such as chemotherapy or hormone therapy)<\/li><\/ul>\t\t\t\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t<div class=\"elementor-element elementor-element-14a1bd7 e-con-full e-flex e-con e-child\" data-id=\"14a1bd7\" data-element_type=\"container\" data-e-type=\"container\">\n\t\t\t\t<div class=\"elementor-element elementor-element-5d868c6 elementor-widget elementor-widget-heading\" data-id=\"5d868c6\" data-element_type=\"widget\" data-e-type=\"widget\" data-widget_type=\"heading.default\">\n\t\t\t\t\t<h2 class=\"elementor-heading-title elementor-size-default\">Stage III<\/h2>\t\t\t\t<\/div>\n\t\t\t\t<div class=\"elementor-element elementor-element-169dc7e elementor-widget elementor-widget-heading\" data-id=\"169dc7e\" data-element_type=\"widget\" data-e-type=\"widget\" data-widget_type=\"heading.default\">\n\t\t\t\t\t<h3 class=\"elementor-heading-title elementor-size-default\">Locally Advanced Breast Cancer<\/h3>\t\t\t\t<\/div>\n\t\t\t\t<div class=\"elementor-element elementor-element-e33bf39 color-bullet-list elementor-widget elementor-widget-text-editor\" data-id=\"e33bf39\" data-element_type=\"widget\" data-e-type=\"widget\" data-widget_type=\"text-editor.default\">\n\t\t\t\t\t\t\t\t\t<ul><li>Tumor is large, or<\/li><li>Cancer has spread to many nearby lymph nodes, chest wall, or skin<\/li><li>Has not spread to distant organs<\/li><li>Requires aggressive treatment including chemotherapy, surgery, radiation, and targeted therapies<\/li><\/ul>\t\t\t\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t<div class=\"elementor-element elementor-element-10ffa82 e-con-full e-flex e-con e-child\" data-id=\"10ffa82\" data-element_type=\"container\" data-e-type=\"container\">\n\t\t\t\t<div class=\"elementor-element elementor-element-bc2de21 elementor-widget elementor-widget-heading\" data-id=\"bc2de21\" data-element_type=\"widget\" data-e-type=\"widget\" data-widget_type=\"heading.default\">\n\t\t\t\t\t<h2 class=\"elementor-heading-title elementor-size-default\">Stage IV<\/h2>\t\t\t\t<\/div>\n\t\t\t\t<div class=\"elementor-element elementor-element-710d656 elementor-widget elementor-widget-heading\" data-id=\"710d656\" data-element_type=\"widget\" data-e-type=\"widget\" data-widget_type=\"heading.default\">\n\t\t\t\t\t<h3 class=\"elementor-heading-title elementor-size-default\">Metastatic Breast Cancer<\/h3>\t\t\t\t<\/div>\n\t\t\t\t<div class=\"elementor-element elementor-element-87e7ca8 color-bullet-list elementor-widget elementor-widget-text-editor\" data-id=\"87e7ca8\" data-element_type=\"widget\" data-e-type=\"widget\" data-widget_type=\"text-editor.default\">\n\t\t\t\t\t\t\t\t\t<ul><li>Cancer has spread to <strong>distant parts of the body<\/strong>, such as:<br \/>&#8211; Bones<br \/>&#8211; Liver<br \/>&#8211; Lungs<br \/>&#8211; Brain<\/li><li>It is <strong>not considered curable<\/strong>, but <strong>it is treatable<\/strong><\/li><li>Many people live l<strong>ong, meaningful lives<\/strong> with ongoing treatment<\/li><\/ul>\t\t\t\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t<div class=\"elementor-element elementor-element-3c393d6 e-con-full e-flex e-con e-child\" data-id=\"3c393d6\" data-element_type=\"container\" data-e-type=\"container\" data-settings=\"{&quot;background_background&quot;:&quot;classic&quot;}\">\n\t\t<div class=\"elementor-element elementor-element-bf4bb78 e-con-full e-flex e-con e-child\" data-id=\"bf4bb78\" data-element_type=\"container\" data-e-type=\"container\" data-settings=\"{&quot;background_background&quot;:&quot;classic&quot;}\">\n\t\t<div class=\"elementor-element elementor-element-f439d0e e-con-full e-flex e-con e-child\" data-id=\"f439d0e\" data-element_type=\"container\" data-e-type=\"container\">\n\t\t\t\t<div class=\"elementor-element elementor-element-0a034a8 elementor-widget elementor-widget-heading\" data-id=\"0a034a8\" data-element_type=\"widget\" data-e-type=\"widget\" data-widget_type=\"heading.default\">\n\t\t\t\t\t<h5 class=\"elementor-heading-title elementor-size-default\">Important to Know<\/h5>\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t<div class=\"elementor-element elementor-element-663c033 e-con-full e-flex e-con e-child\" data-id=\"663c033\" data-element_type=\"container\" data-e-type=\"container\">\n\t\t<div class=\"elementor-element elementor-element-f800f06 e-con-full e-flex e-con e-child\" data-id=\"f800f06\" data-element_type=\"container\" data-e-type=\"container\">\n\t\t\t\t<div class=\"elementor-element elementor-element-f552c08 elementor-widget elementor-widget-heading\" data-id=\"f552c08\" data-element_type=\"widget\" data-e-type=\"widget\" data-widget_type=\"heading.default\">\n\t\t\t\t\t<h3 class=\"elementor-heading-title elementor-size-default\">Stage does NOT mean prognosis alone. <\/h3>\t\t\t\t<\/div>\n\t\t\t\t<div class=\"elementor-element elementor-element-f5d761f color-bullet-list elementor-widget elementor-widget-text-editor\" data-id=\"f5d761f\" data-element_type=\"widget\" data-e-type=\"widget\" data-widget_type=\"text-editor.default\">\n\t\t\t\t\t\t\t\t\t<p>Outcomes also depend on:<\/p><ul><li>Hormone receptor status (ER, PR)<\/li><li>HER2 status<\/li><li>Tumor grade<\/li><li>Overall health<\/li><\/ul>\t\t\t\t\t\t\t\t<\/div>\n\t\t\t\t<div class=\"elementor-element elementor-element-55de121 elementor-widget elementor-widget-heading\" data-id=\"55de121\" data-element_type=\"widget\" data-e-type=\"widget\" data-widget_type=\"heading.default\">\n\t\t\t\t\t<h3 class=\"elementor-heading-title elementor-size-default\">Early detection saves lives.<\/h3>\t\t\t\t<\/div>\n\t\t\t\t<div class=\"elementor-element elementor-element-f1df5e9 color-bullet-list elementor-widget elementor-widget-text-editor\" data-id=\"f1df5e9\" data-element_type=\"widget\" data-e-type=\"widget\" data-widget_type=\"text-editor.default\">\n\t\t\t\t\t\t\t\t\t<p>Cancers found at Stage 0 or I have survival rates above 90\u201399%<\/p>\t\t\t\t\t\t\t\t<\/div>\n\t\t\t\t<div class=\"elementor-element elementor-element-37ec582 elementor-widget elementor-widget-heading\" data-id=\"37ec582\" data-element_type=\"widget\" data-e-type=\"widget\" data-widget_type=\"heading.default\">\n\t\t\t\t\t<h3 class=\"elementor-heading-title elementor-size-default\">Treatment today is more personalized and effective than ever before<\/h3>\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t","protected":false},"excerpt":{"rendered":"<p>Table of Contents About Breast Cancer Breast cancer is divided into stages based on the size of the tumor, whether it has spread to nearby lymph nodes, and whether it has spread to other parts of the body. Staging helps doctors determine the best treatment and gives patients a clearer understanding of their diagnosis. Doctors [&hellip;]<\/p>\n","protected":false},"author":2,"featured_media":0,"parent":27,"menu_order":0,"comment_status":"closed","ping_status":"closed","template":"","meta":{"footnotes":""},"class_list":["post-1860","page","type-page","status-publish","hentry"],"yoast_head":"<!-- This site is optimized with the Yoast SEO plugin v27.8 - https:\/\/yoast.com\/product\/yoast-seo-wordpress\/ -->\n<title>The Stages of Breast Cancer - RFTC Japan<\/title>\n<meta name=\"robots\" content=\"index, follow, max-snippet:-1, max-image-preview:large, max-video-preview:-1\" \/>\n<link rel=\"canonical\" href=\"https:\/\/rftcjapan.org\/en\/about-breast-cancer\/the-stages-of-breast-cancer\/\" \/>\n<meta property=\"og:locale\" content=\"en_US\" \/>\n<meta property=\"og:type\" content=\"article\" \/>\n<meta property=\"og:title\" content=\"The Stages of Breast Cancer - RFTC Japan\" \/>\n<meta property=\"og:description\" content=\"Table of Contents About Breast Cancer Breast cancer is divided into stages based on the size of the tumor, whether it has spread to nearby lymph nodes, and whether it has spread to other parts of the body. Staging helps doctors determine the best treatment and gives patients a clearer understanding of their diagnosis. Doctors [&hellip;]\" \/>\n<meta property=\"og:url\" content=\"https:\/\/rftcjapan.org\/en\/about-breast-cancer\/the-stages-of-breast-cancer\/\" \/>\n<meta property=\"og:site_name\" content=\"RFTC Japan\" \/>\n<meta property=\"article:modified_time\" content=\"2026-06-03T04:58:32+00:00\" \/>\n<meta name=\"twitter:card\" content=\"summary_large_image\" \/>\n<meta name=\"twitter:label1\" content=\"Est. reading time\" \/>\n\t<meta name=\"twitter:data1\" content=\"1 minute\" \/>\n<script type=\"application\/ld+json\" class=\"yoast-schema-graph\">{\"@context\":\"https:\\\/\\\/schema.org\",\"@graph\":[{\"@type\":\"WebPage\",\"@id\":\"https:\\\/\\\/rftcjapan.org\\\/en\\\/about-breast-cancer\\\/the-stages-of-breast-cancer\\\/\",\"url\":\"https:\\\/\\\/rftcjapan.org\\\/en\\\/about-breast-cancer\\\/the-stages-of-breast-cancer\\\/\",\"name\":\"The Stages of Breast Cancer - RFTC Japan\",\"isPartOf\":{\"@id\":\"https:\\\/\\\/rftcjapan.org\\\/en\\\/#website\"},\"primaryImageOfPage\":{\"@id\":\"https:\\\/\\\/rftcjapan.org\\\/en\\\/about-breast-cancer\\\/the-stages-of-breast-cancer\\\/#primaryimage\"},\"image\":{\"@id\":\"https:\\\/\\\/rftcjapan.org\\\/en\\\/about-breast-cancer\\\/the-stages-of-breast-cancer\\\/#primaryimage\"},\"thumbnailUrl\":\"https:\\\/\\\/rftcjapan.org\\\/wpdata\\\/wp-content\\\/uploads\\\/2026\\\/02\\\/stage-0-breastcancer-Vectorimage.svg\",\"datePublished\":\"2026-02-07T10:48:41+00:00\",\"dateModified\":\"2026-06-03T04:58:32+00:00\",\"breadcrumb\":{\"@id\":\"https:\\\/\\\/rftcjapan.org\\\/en\\\/about-breast-cancer\\\/the-stages-of-breast-cancer\\\/#breadcrumb\"},\"inLanguage\":\"en-US\",\"potentialAction\":[{\"@type\":\"ReadAction\",\"target\":[\"https:\\\/\\\/rftcjapan.org\\\/en\\\/about-breast-cancer\\\/the-stages-of-breast-cancer\\\/\"]}]},{\"@type\":\"ImageObject\",\"inLanguage\":\"en-US\",\"@id\":\"https:\\\/\\\/rftcjapan.org\\\/en\\\/about-breast-cancer\\\/the-stages-of-breast-cancer\\\/#primaryimage\",\"url\":\"https:\\\/\\\/rftcjapan.org\\\/wpdata\\\/wp-content\\\/uploads\\\/2026\\\/02\\\/stage-0-breastcancer-Vectorimage.svg\",\"contentUrl\":\"https:\\\/\\\/rftcjapan.org\\\/wpdata\\\/wp-content\\\/uploads\\\/2026\\\/02\\\/stage-0-breastcancer-Vectorimage.svg\"},{\"@type\":\"BreadcrumbList\",\"@id\":\"https:\\\/\\\/rftcjapan.org\\\/en\\\/about-breast-cancer\\\/the-stages-of-breast-cancer\\\/#breadcrumb\",\"itemListElement\":[{\"@type\":\"ListItem\",\"position\":1,\"name\":\"Home\",\"item\":\"https:\\\/\\\/rftcjapan.org\\\/en\\\/\"},{\"@type\":\"ListItem\",\"position\":2,\"name\":\"About Breast Cancer\",\"item\":\"https:\\\/\\\/rftcjapan.org\\\/en\\\/%e4%b9%b3%e3%81%8c%e3%82%93%e3%81%ab%e3%81%a4%e3%81%84%e3%81%a6\\\/\"},{\"@type\":\"ListItem\",\"position\":3,\"name\":\"The Stages of Breast Cancer\"}]},{\"@type\":\"WebSite\",\"@id\":\"https:\\\/\\\/rftcjapan.org\\\/en\\\/#website\",\"url\":\"https:\\\/\\\/rftcjapan.org\\\/en\\\/\",\"name\":\"RFTC Japan\",\"description\":\"Japan&#039;s Leading Breast Cancer Foundation\",\"potentialAction\":[{\"@type\":\"SearchAction\",\"target\":{\"@type\":\"EntryPoint\",\"urlTemplate\":\"https:\\\/\\\/rftcjapan.org\\\/en\\\/?s={search_term_string}\"},\"query-input\":{\"@type\":\"PropertyValueSpecification\",\"valueRequired\":true,\"valueName\":\"search_term_string\"}}],\"inLanguage\":\"en-US\"}]}<\/script>\n<!-- \/ Yoast SEO plugin. -->","yoast_head_json":{"title":"The Stages of Breast Cancer - RFTC Japan","robots":{"index":"index","follow":"follow","max-snippet":"max-snippet:-1","max-image-preview":"max-image-preview:large","max-video-preview":"max-video-preview:-1"},"canonical":"https:\/\/rftcjapan.org\/en\/about-breast-cancer\/the-stages-of-breast-cancer\/","og_locale":"en_US","og_type":"article","og_title":"The Stages of Breast Cancer - RFTC Japan","og_description":"Table of Contents About Breast Cancer Breast cancer is divided into stages based on the size of the tumor, whether it has spread to nearby lymph nodes, and whether it has spread to other parts of the body. Staging helps doctors determine the best treatment and gives patients a clearer understanding of their diagnosis. Doctors [&hellip;]","og_url":"https:\/\/rftcjapan.org\/en\/about-breast-cancer\/the-stages-of-breast-cancer\/","og_site_name":"RFTC Japan","article_modified_time":"2026-06-03T04:58:32+00:00","twitter_card":"summary_large_image","twitter_misc":{"Est. reading time":"1 minute"},"schema":{"@context":"https:\/\/schema.org","@graph":[{"@type":"WebPage","@id":"https:\/\/rftcjapan.org\/en\/about-breast-cancer\/the-stages-of-breast-cancer\/","url":"https:\/\/rftcjapan.org\/en\/about-breast-cancer\/the-stages-of-breast-cancer\/","name":"The Stages of Breast Cancer - RFTC Japan","isPartOf":{"@id":"https:\/\/rftcjapan.org\/en\/#website"},"primaryImageOfPage":{"@id":"https:\/\/rftcjapan.org\/en\/about-breast-cancer\/the-stages-of-breast-cancer\/#primaryimage"},"image":{"@id":"https:\/\/rftcjapan.org\/en\/about-breast-cancer\/the-stages-of-breast-cancer\/#primaryimage"},"thumbnailUrl":"https:\/\/rftcjapan.org\/wpdata\/wp-content\/uploads\/2026\/02\/stage-0-breastcancer-Vectorimage.svg","datePublished":"2026-02-07T10:48:41+00:00","dateModified":"2026-06-03T04:58:32+00:00","breadcrumb":{"@id":"https:\/\/rftcjapan.org\/en\/about-breast-cancer\/the-stages-of-breast-cancer\/#breadcrumb"},"inLanguage":"en-US","potentialAction":[{"@type":"ReadAction","target":["https:\/\/rftcjapan.org\/en\/about-breast-cancer\/the-stages-of-breast-cancer\/"]}]},{"@type":"ImageObject","inLanguage":"en-US","@id":"https:\/\/rftcjapan.org\/en\/about-breast-cancer\/the-stages-of-breast-cancer\/#primaryimage","url":"https:\/\/rftcjapan.org\/wpdata\/wp-content\/uploads\/2026\/02\/stage-0-breastcancer-Vectorimage.svg","contentUrl":"https:\/\/rftcjapan.org\/wpdata\/wp-content\/uploads\/2026\/02\/stage-0-breastcancer-Vectorimage.svg"},{"@type":"BreadcrumbList","@id":"https:\/\/rftcjapan.org\/en\/about-breast-cancer\/the-stages-of-breast-cancer\/#breadcrumb","itemListElement":[{"@type":"ListItem","position":1,"name":"Home","item":"https:\/\/rftcjapan.org\/en\/"},{"@type":"ListItem","position":2,"name":"About Breast Cancer","item":"https:\/\/rftcjapan.org\/en\/%e4%b9%b3%e3%81%8c%e3%82%93%e3%81%ab%e3%81%a4%e3%81%84%e3%81%a6\/"},{"@type":"ListItem","position":3,"name":"The Stages of Breast Cancer"}]},{"@type":"WebSite","@id":"https:\/\/rftcjapan.org\/en\/#website","url":"https:\/\/rftcjapan.org\/en\/","name":"RFTC Japan","description":"Japan&#039;s Leading Breast Cancer Foundation","potentialAction":[{"@type":"SearchAction","target":{"@type":"EntryPoint","urlTemplate":"https:\/\/rftcjapan.org\/en\/?s={search_term_string}"},"query-input":{"@type":"PropertyValueSpecification","valueRequired":true,"valueName":"search_term_string"}}],"inLanguage":"en-US"}]}},"_links":{"self":[{"href":"https:\/\/rftcjapan.org\/en\/wp-json\/wp\/v2\/pages\/1860","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/rftcjapan.org\/en\/wp-json\/wp\/v2\/pages"}],"about":[{"href":"https:\/\/rftcjapan.org\/en\/wp-json\/wp\/v2\/types\/page"}],"author":[{"embeddable":true,"href":"https:\/\/rftcjapan.org\/en\/wp-json\/wp\/v2\/users\/2"}],"replies":[{"embeddable":true,"href":"https:\/\/rftcjapan.org\/en\/wp-json\/wp\/v2\/comments?post=1860"}],"version-history":[{"count":97,"href":"https:\/\/rftcjapan.org\/en\/wp-json\/wp\/v2\/pages\/1860\/revisions"}],"predecessor-version":[{"id":10882,"href":"https:\/\/rftcjapan.org\/en\/wp-json\/wp\/v2\/pages\/1860\/revisions\/10882"}],"up":[{"embeddable":true,"href":"https:\/\/rftcjapan.org\/en\/wp-json\/wp\/v2\/pages\/27"}],"wp:attachment":[{"href":"https:\/\/rftcjapan.org\/en\/wp-json\/wp\/v2\/media?parent=1860"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}