Personalized Tool

UNDER CONSTRUCTION Tool functions may not work correctly, and responses may not be complete or correct.

How does gender affirming care affect breast cancer risk?

Anyone can get breast cancer. For most people assigned female at birth (AFAB), breast cancer risk is a significant health concern. In fact, about 1 in 8 (12%) will develop breast cancer in their lifetime.

This data is based mostly on cisgender women. We’ll help you understand how your body and your medical history may affect your risk.

The following set of questions does NOT store individualized information about you, the user. It does not keep your IP address or the user agent. We do store responses, which do not contain any protected health information, so that we can understand how the tool is used over time, and what kinds of people may find it most useful.

What does the tool do?

CHESTcare is a resource for people who have had or are planning “top” surgery (gender-affirming mastectomy) or are taking or planning to take testosterone. Our goal is to empower you to make informed decisions about your health and cancer risk.

Note that if you are taking estrogen or have a prostate, future work is planned for a sibling site to cover your needs. Stay tuned!

To help us give you the right guidance, please answer these questions:

What is 9-4?

About my top surgery status:
About testosterone ("T"):
Think about the people who are related to you by blood (biological relatives). Have YOU or ANY OF THESE PEOPLE had any of the following cancers: breast, ovarian, pancreas, prostate, colon, stomach, melanoma, or primary peritoneal cancer?
Do not include skin cancers other than melanoma, like basal cell carcinoma and sarcoma. Do not include cervical cancer. Only include people who are related to you by blood. Only include your mother, father, aunts (mother and father’s sisters), uncles (mother and father’s brothers), grandparents, nieces, nephews, children. Do not include your cousins, great aunts, great uncles, and great grandparents.
Have you ever had genetic testing for breast cancer genes that run in families? This type of testing is called "hereditary cancer genetic testing" or "germline cancer genetic testing"