{"id":1870,"date":"2026-02-07T19:50:37","date_gmt":"2026-02-07T10:50:37","guid":{"rendered":"https:\/\/dev.rftcjapan.org\/?page_id=1870"},"modified":"2026-02-27T13:21:59","modified_gmt":"2026-02-27T04:21:59","slug":"brca1-and-brca2-mutations-in-women","status":"publish","type":"page","link":"https:\/\/rftcjapan.org\/en\/about-breast-cancer\/brca1-and-brca2-mutations-in-women\/","title":{"rendered":"BRCA1 and BRCA2 Mutations in Women"},"content":{"rendered":"\t\t<div data-elementor-type=\"wp-page\" data-elementor-id=\"1870\" class=\"elementor elementor-1870\" data-elementor-post-type=\"page\">\n\t\t\t\t<div class=\"elementor-element elementor-element-72e529c e-flex e-con-boxed e-con e-parent\" data-id=\"72e529c\" 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-ecd7fb4 e-con-full elementor-hidden-mobile e-flex e-con e-child\" data-id=\"ecd7fb4\" data-element_type=\"container\" data-e-type=\"container\">\n\t\t<div class=\"elementor-element elementor-element-4ab8ac4 e-con-full e-flex e-con e-child\" data-id=\"4ab8ac4\" 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-c291369 elementor-toc--minimized-on-tablet elementor-widget elementor-widget-table-of-contents\" data-id=\"c291369\" 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__c291369\" 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__c291369\" 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__c291369\" 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-29cdf38 elementor-widget elementor-widget-heading\" data-id=\"29cdf38\" 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-73ad7c5 elementor-widget elementor-widget-template\" data-id=\"73ad7c5\" 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-2517\"><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-2515\"><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-2516\"><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-2517\"><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-2515\"><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-2516\"><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-d235685 e-con-full e-flex e-con e-child\" data-id=\"d235685\" data-element_type=\"container\" data-e-type=\"container\">\n\t\t\t\t<div class=\"elementor-element elementor-element-cc53352 elementor-widget elementor-widget-heading\" data-id=\"cc53352\" 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\">BRCA1 and BRCA2 Mutations in Women<\/h1>\t\t\t\t<\/div>\n\t\t\t\t<div class=\"elementor-element elementor-element-82f9992 elementor-widget elementor-widget-text-editor\" data-id=\"82f9992\" 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>BRCA1 and BRCA2 are genes that help repair damaged DNA. When they work properly, they help prevent cancer. Some women inherit harmful (pathogenic) mutations in these genes, which significantly increase the risk of developing breast and ovarian cancer, often at a younger age than average.<\/p>\t\t\t\t\t\t\t\t<\/div>\n\t\t<div class=\"elementor-element elementor-element-553fcb1 e-con-full e-flex e-con e-child\" data-id=\"553fcb1\" data-element_type=\"container\" data-e-type=\"container\">\n\t\t\t\t<div class=\"elementor-element elementor-element-7f73114 elementor-widget elementor-widget-heading\" data-id=\"7f73114\" 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\">What does it mean to have a BRCA mutation?<\/h2>\t\t\t\t<\/div>\n\t\t\t\t<div class=\"elementor-element elementor-element-5b1d339 color-bullet-list elementor-widget elementor-widget-text-editor\" data-id=\"5b1d339\" 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>A BRCA1 or BRCA2 mutation is inherited, meaning it is passed down from a parent. Both women and men can carry and pass on these mutations, but women face higher cancer risks.<\/p><ul><li>Each child of a parent with a BRCA mutation has a 50% chance of inheriting it<\/li><li>Mutations are present from birth, but cancer may never develop<\/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-705aeda e-con-full e-flex e-con e-child\" data-id=\"705aeda\" data-element_type=\"container\" data-e-type=\"container\">\n\t\t\t\t<div class=\"elementor-element elementor-element-fcb856a elementor-widget elementor-widget-heading\" data-id=\"fcb856a\" 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\">Cancer risks for women with BRCA mutations<\/h2>\t\t\t\t<\/div>\n\t\t\t\t<div class=\"elementor-element elementor-element-95cb83f color-bullet-list elementor-widget elementor-widget-text-editor\" data-id=\"95cb83f\" 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>While risks vary by individual and family history:<\/p><ul><li><strong>Breast cancer<\/strong><ul><li>BRCA1: up to ~70% lifetime risk<\/li><li>BRCA2: up to ~60\u201370% lifetime risk<\/li><\/ul><\/li><li><strong>Ovarian cancer<\/strong><ul><li>BRCA1: up to ~40\u201345% lifetime risk<\/li><li>BRCA2: up to ~15\u201320% lifetime risk<\/li><\/ul><\/li><\/ul><p>BRCA mutations may also increase the risk of second breast cancers and other cancers.<\/p>\t\t\t\t\t\t\t\t<\/div>\n\t\t\t\t<div class=\"elementor-element elementor-element-353695c elementor-widget elementor-widget-image\" data-id=\"353695c\" 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 fetchpriority=\"high\" decoding=\"async\" width=\"800\" height=\"510\" src=\"https:\/\/rftcjapan.org\/wpdata\/wp-content\/uploads\/2026\/02\/BRCA-chances-Women-Breastcancer-VectorImage.svg\" class=\"attachment-large size-large wp-image-6661\" 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-fe41dad e-con-full e-flex e-con e-child\" data-id=\"fe41dad\" data-element_type=\"container\" data-e-type=\"container\">\n\t\t\t\t<div class=\"elementor-element elementor-element-9ee2218 elementor-widget elementor-widget-heading\" data-id=\"9ee2218\" 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\">Who should consider genetic testing?<\/h2>\t\t\t\t<\/div>\n\t\t\t\t<div class=\"elementor-element elementor-element-bf60383 color-bullet-list elementor-widget elementor-widget-text-editor\" data-id=\"bf60383\" 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>Genetic counseling and testing may be recommended for women who have:<\/p><ul><li>MBreast cancer diagnosed at a young age<\/li><li>Triple-negative breast cancer, especially before age 60<\/li><li>A strong family history of breast, ovarian, pancreatic, or prostate cancer<\/li><li>A known BRCA mutation in the family<\/li><li>Ashkenazi Jewish ancestry with a family history of related cancers<\/li><\/ul><p>Testing is usually done after genetic counseling to help understand the benefits, limitations, and possible results.<\/p>\t\t\t\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t<div class=\"elementor-element elementor-element-f1bac35 e-con-full e-flex e-con e-child\" data-id=\"f1bac35\" data-element_type=\"container\" data-e-type=\"container\">\n\t\t\t\t<div class=\"elementor-element elementor-element-a4644ad elementor-widget elementor-widget-heading\" data-id=\"a4644ad\" 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\">If you have a BRCA mutation<\/h2>\t\t\t\t<\/div>\n\t\t\t\t<div class=\"elementor-element elementor-element-31a50f0 color-bullet-list elementor-widget elementor-widget-text-editor\" data-id=\"31a50f0\" 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>Having a BRCA mutation does not mean you will definitely develop cancer. Many women with BRCA mutations never do. However, knowing your status allows you to take proactive steps, which may include:<\/p><ul><li>Earlier and more frequent screening (such as a breast MRI and mammography)<\/li><li>Risk-reducing medications for some women<\/li><li>Preventive surgery options, depending on personal choice and medical advice<\/li><li>Family planning and informed decisions for relatives who may also be at risk<\/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-6651e81 e-con-full e-flex e-con e-child\" data-id=\"6651e81\" 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-656e918 e-con-full e-flex e-con e-child\" data-id=\"656e918\" 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-4f33449 e-con-full e-flex e-con e-child\" data-id=\"4f33449\" data-element_type=\"container\" data-e-type=\"container\">\n\t\t\t\t<div class=\"elementor-element elementor-element-40d9e4d elementor-widget elementor-widget-heading\" data-id=\"40d9e4d\" 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\">Support and next steps<\/h5>\t\t\t\t<\/div>\n\t\t\t\t<div class=\"elementor-element elementor-element-c31eca7 elementor-widget elementor-widget-heading\" data-id=\"c31eca7\" 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\">Learning you have a BRCA mutation can feel overwhelming, but support is available. <\/h3>\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t<div class=\"elementor-element elementor-element-a711295 e-con-full e-flex e-con e-child\" data-id=\"a711295\" data-element_type=\"container\" data-e-type=\"container\">\n\t\t\t\t<div class=\"elementor-element elementor-element-7da6233 color-bullet-list elementor-widget elementor-widget-text-editor\" data-id=\"7da6233\" 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>Genetic counselors, breast specialists, and support organizations can help women understand their risk and make informed decisions that are right for them.<\/p><p>If you have concerns about your family history or genetic risk, talk to your healthcare provider or a genetic counselor.<\/p>\t\t\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<\/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 BRCA1 and BRCA2 are genes that help repair damaged DNA. When they work properly, they help prevent cancer. Some women inherit harmful (pathogenic) mutations in these genes, which significantly increase the risk of developing breast and ovarian cancer, often at a younger age than average. What does it mean [&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-1870","page","type-page","status-publish","hentry"],"yoast_head":"<!-- This site is optimized with the Yoast SEO plugin v27.7 - https:\/\/yoast.com\/product\/yoast-seo-wordpress\/ -->\n<title>BRCA1 and BRCA2 Mutations in Women - 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\/brca1-and-brca2-mutations-in-women\/\" \/>\n<meta property=\"og:locale\" content=\"en_US\" \/>\n<meta property=\"og:type\" content=\"article\" \/>\n<meta property=\"og:title\" content=\"BRCA1 and BRCA2 Mutations in Women - RFTC Japan\" \/>\n<meta property=\"og:description\" content=\"Table of Contents About Breast Cancer BRCA1 and BRCA2 are genes that help repair damaged DNA. When they work properly, they help prevent cancer. Some women inherit harmful (pathogenic) mutations in these genes, which significantly increase the risk of developing breast and ovarian cancer, often at a younger age than average. What does it mean [&hellip;]\" \/>\n<meta property=\"og:url\" content=\"https:\/\/rftcjapan.org\/en\/about-breast-cancer\/brca1-and-brca2-mutations-in-women\/\" \/>\n<meta property=\"og:site_name\" content=\"RFTC Japan\" \/>\n<meta property=\"article:modified_time\" content=\"2026-02-27T04:21:59+00:00\" \/>\n<meta property=\"og:image\" content=\"https:\/\/rftcjapan.org\/wpdata\/wp-content\/uploads\/2026\/02\/BRCA-chances-Women-Breastcancer-VectorImage.svg\" \/>\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=\"28 minutes\" \/>\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\\\/brca1-and-brca2-mutations-in-women\\\/\",\"url\":\"https:\\\/\\\/rftcjapan.org\\\/en\\\/about-breast-cancer\\\/brca1-and-brca2-mutations-in-women\\\/\",\"name\":\"BRCA1 and BRCA2 Mutations in Women - RFTC Japan\",\"isPartOf\":{\"@id\":\"https:\\\/\\\/rftcjapan.org\\\/#website\"},\"primaryImageOfPage\":{\"@id\":\"https:\\\/\\\/rftcjapan.org\\\/en\\\/about-breast-cancer\\\/brca1-and-brca2-mutations-in-women\\\/#primaryimage\"},\"image\":{\"@id\":\"https:\\\/\\\/rftcjapan.org\\\/en\\\/about-breast-cancer\\\/brca1-and-brca2-mutations-in-women\\\/#primaryimage\"},\"thumbnailUrl\":\"https:\\\/\\\/rftcjapan.org\\\/wpdata\\\/wp-content\\\/uploads\\\/2026\\\/02\\\/BRCA-chances-Women-Breastcancer-VectorImage.svg\",\"datePublished\":\"2026-02-07T10:50:37+00:00\",\"dateModified\":\"2026-02-27T04:21:59+00:00\",\"breadcrumb\":{\"@id\":\"https:\\\/\\\/rftcjapan.org\\\/en\\\/about-breast-cancer\\\/brca1-and-brca2-mutations-in-women\\\/#breadcrumb\"},\"inLanguage\":\"en-US\",\"potentialAction\":[{\"@type\":\"ReadAction\",\"target\":[\"https:\\\/\\\/rftcjapan.org\\\/en\\\/about-breast-cancer\\\/brca1-and-brca2-mutations-in-women\\\/\"]}]},{\"@type\":\"ImageObject\",\"inLanguage\":\"en-US\",\"@id\":\"https:\\\/\\\/rftcjapan.org\\\/en\\\/about-breast-cancer\\\/brca1-and-brca2-mutations-in-women\\\/#primaryimage\",\"url\":\"https:\\\/\\\/rftcjapan.org\\\/wpdata\\\/wp-content\\\/uploads\\\/2026\\\/02\\\/BRCA-chances-Women-Breastcancer-VectorImage.svg\",\"contentUrl\":\"https:\\\/\\\/rftcjapan.org\\\/wpdata\\\/wp-content\\\/uploads\\\/2026\\\/02\\\/BRCA-chances-Women-Breastcancer-VectorImage.svg\"},{\"@type\":\"BreadcrumbList\",\"@id\":\"https:\\\/\\\/rftcjapan.org\\\/en\\\/about-breast-cancer\\\/brca1-and-brca2-mutations-in-women\\\/#breadcrumb\",\"itemListElement\":[{\"@type\":\"ListItem\",\"position\":1,\"name\":\"Home\",\"item\":\"https:\\\/\\\/rftcjapan.org\\\/\"},{\"@type\":\"ListItem\",\"position\":2,\"name\":\"About Breast Cancer\",\"item\":\"https:\\\/\\\/rftcjapan.org\\\/%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\":\"BRCA1 and BRCA2 Mutations in Women\"}]},{\"@type\":\"WebSite\",\"@id\":\"https:\\\/\\\/rftcjapan.org\\\/#website\",\"url\":\"https:\\\/\\\/rftcjapan.org\\\/\",\"name\":\"RFTC Japan\",\"description\":\"Japan&#039;s Leading Breast Cancer Foundation\",\"potentialAction\":[{\"@type\":\"SearchAction\",\"target\":{\"@type\":\"EntryPoint\",\"urlTemplate\":\"https:\\\/\\\/rftcjapan.org\\\/?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":"BRCA1 and BRCA2 Mutations in Women - 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\/brca1-and-brca2-mutations-in-women\/","og_locale":"en_US","og_type":"article","og_title":"BRCA1 and BRCA2 Mutations in Women - RFTC Japan","og_description":"Table of Contents About Breast Cancer BRCA1 and BRCA2 are genes that help repair damaged DNA. When they work properly, they help prevent cancer. Some women inherit harmful (pathogenic) mutations in these genes, which significantly increase the risk of developing breast and ovarian cancer, often at a younger age than average. What does it mean [&hellip;]","og_url":"https:\/\/rftcjapan.org\/en\/about-breast-cancer\/brca1-and-brca2-mutations-in-women\/","og_site_name":"RFTC Japan","article_modified_time":"2026-02-27T04:21:59+00:00","og_image":[{"url":"https:\/\/rftcjapan.org\/wpdata\/wp-content\/uploads\/2026\/02\/BRCA-chances-Women-Breastcancer-VectorImage.svg","type":"","width":"","height":""}],"twitter_card":"summary_large_image","twitter_misc":{"Est. reading time":"28 minutes"},"schema":{"@context":"https:\/\/schema.org","@graph":[{"@type":"WebPage","@id":"https:\/\/rftcjapan.org\/en\/about-breast-cancer\/brca1-and-brca2-mutations-in-women\/","url":"https:\/\/rftcjapan.org\/en\/about-breast-cancer\/brca1-and-brca2-mutations-in-women\/","name":"BRCA1 and BRCA2 Mutations in Women - RFTC Japan","isPartOf":{"@id":"https:\/\/rftcjapan.org\/#website"},"primaryImageOfPage":{"@id":"https:\/\/rftcjapan.org\/en\/about-breast-cancer\/brca1-and-brca2-mutations-in-women\/#primaryimage"},"image":{"@id":"https:\/\/rftcjapan.org\/en\/about-breast-cancer\/brca1-and-brca2-mutations-in-women\/#primaryimage"},"thumbnailUrl":"https:\/\/rftcjapan.org\/wpdata\/wp-content\/uploads\/2026\/02\/BRCA-chances-Women-Breastcancer-VectorImage.svg","datePublished":"2026-02-07T10:50:37+00:00","dateModified":"2026-02-27T04:21:59+00:00","breadcrumb":{"@id":"https:\/\/rftcjapan.org\/en\/about-breast-cancer\/brca1-and-brca2-mutations-in-women\/#breadcrumb"},"inLanguage":"en-US","potentialAction":[{"@type":"ReadAction","target":["https:\/\/rftcjapan.org\/en\/about-breast-cancer\/brca1-and-brca2-mutations-in-women\/"]}]},{"@type":"ImageObject","inLanguage":"en-US","@id":"https:\/\/rftcjapan.org\/en\/about-breast-cancer\/brca1-and-brca2-mutations-in-women\/#primaryimage","url":"https:\/\/rftcjapan.org\/wpdata\/wp-content\/uploads\/2026\/02\/BRCA-chances-Women-Breastcancer-VectorImage.svg","contentUrl":"https:\/\/rftcjapan.org\/wpdata\/wp-content\/uploads\/2026\/02\/BRCA-chances-Women-Breastcancer-VectorImage.svg"},{"@type":"BreadcrumbList","@id":"https:\/\/rftcjapan.org\/en\/about-breast-cancer\/brca1-and-brca2-mutations-in-women\/#breadcrumb","itemListElement":[{"@type":"ListItem","position":1,"name":"Home","item":"https:\/\/rftcjapan.org\/"},{"@type":"ListItem","position":2,"name":"About Breast Cancer","item":"https:\/\/rftcjapan.org\/%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":"BRCA1 and BRCA2 Mutations in Women"}]},{"@type":"WebSite","@id":"https:\/\/rftcjapan.org\/#website","url":"https:\/\/rftcjapan.org\/","name":"RFTC Japan","description":"Japan&#039;s Leading Breast Cancer Foundation","potentialAction":[{"@type":"SearchAction","target":{"@type":"EntryPoint","urlTemplate":"https:\/\/rftcjapan.org\/?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\/1870","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=1870"}],"version-history":[{"count":67,"href":"https:\/\/rftcjapan.org\/en\/wp-json\/wp\/v2\/pages\/1870\/revisions"}],"predecessor-version":[{"id":7341,"href":"https:\/\/rftcjapan.org\/en\/wp-json\/wp\/v2\/pages\/1870\/revisions\/7341"}],"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=1870"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}