Research

Hormonal

Transfeminine hormone therapy (estrogen + antiandrogens) induces feminizing physical changes including breast development, fat redistribution, and reduced body/facial hair, but does not significantly alter voice pitch.

Transfeminine hormone therapy will cause breast growth, fat redistribution to a female pattern, and reduced body/facial hair growth. It will NOT significantly lower your voice pitch. If voice pitch change is a priority, you will likely need voice training or surgery in addition to hormones. Breast development varies, with many reaching a plateau at a smaller cup size (AAA or less) within 6 months.

GoodSupportsHIGH confidence
Feminizing treatment with estrogens and antiandrogens has desired physical changes, such as enhanced breast growth, reduction of facial and body hair growth, and fat redistribution in a female pattern... Transgender women will have an improved self-perceived feminine quality in their voice after the initiation of hormone therapy. However, many transgender women still have difficulty with their voice quality...
Guy T’Sjoen et al. · Endocrine Reviews · 2018

Why this rating

Based on cohort studies (Italian, German, UK, US) showing consistent trends in body composition and breast development.

Source

Endocrinology of Transgender Medicine

Guy T’Sjoen et al. · Endocrine Reviews · 2018

DOI 10.1210/er.2018-00011

narrative_reviewCited 313×
Read the paper
DOI resolved against Crossref · corpus check 2026-06-10

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