The Effect of Gender-affirmative Measures on Breast Perception in Trans Men

The Effect of Gender-affirmative Measures on Breast Perception in Trans Men (TRANSBREAST) - a Prospective Cohort Study

Breast dysphoria in transmasculine or genderdiverse individuals is a distinct psychological burden associated with depression, anxiety and suicidality. The aim is to systematically investigate the effect of GAHT (gender-affirming hormone therapy) and mastectomy on this form of dysphoria.

The primary objective of this study is to analyse and investigate the psychological and physical effects of breast development on trans men or genderdiverse individuals.

A secondary objective is to determine the extent to which the stress affects the well-being of trans men depending on the coping strategies used (binding vs. taping).

Inclusion Criteria:

• AFAB (Assigned Female At Birth)
• before starting GAHT
• before mastectomy

Exclusion Criteria:

• Ongoing GAHT
• Mastectomy already performed
• Lack of capacity to give consent
• Insufficient knowledge of German