Hormonal therapy is a form of systemic treatment for breast cancer.
The goal is to protect your whole body from breast cancer cells that may have escaped the original tumor. HRT is not a breast cancer treatment, and once you have a breast cancer diagnosis, HRT is considered relatively unsafe. However, other treatments are available that you may have to make decisions about. To understand how tamoxifen and other anti-estrogen treatments work, you first need to understand some estrogen basics.