Many women will have a relative who has had breast cancer because it is a relatively common cancer.
It depends on the strength of the family history of certain cancers. For the majority of women with a family history of breast cancer this will not change their background risk of developing breast cancer by much and taking HRT is unlikely to contribute to that risk much either.
In these women (the majority) the benefits of taking HRT are likely to outweigh the risks.
Women with multiple family members or close family members who had breast cancer at a young age may require advice from the genetics team before they take