Overview

Masculinizing hormone therapy is used to induce the physical changes in your body caused by male hormones during puberty (secondary sex characteristics) to promote the matching of your gender identity and body (gender congruence). If masculinizing hormone therapy is started before the changes of female puberty begins, female secondary sex characteristics, such as the development of breasts, can be avoided. Masculinizing hormone therapy is also known as gender-affirming hormone therapy.

During masculinizing hormone therapy, you'll be given the male hormone testosterone, which suppresses your menstrual cycles and decreases the production of estrogen from your ovaries. Changes caused by these medications can be temporary or permanent. Masculinizing hormone therapy can be done alone or in combination with masculinizing surgery.

Masculinizing hormone therapy isn't for all transgender men, however. Masculinizing hormone therapy can affect your fertility and sexual function and cause other health problems. Your doctor can help you weigh the risks and benefits.