Psychological and Physical Correlates After Gender-Affirming Mastectomy: Insights from a Case Report and Review of the Literature

Gender dysphoria stems from incongruence between gender identity and assigned sex, often causing significant distress related to breast anatomy in transmasculine individuals. Gender-affirming hormone therapy typically precedes mastectomy, which is a fundamental intervention in transgender healthcare. Surgical challenges arise in patients with large breasts on lean frames, requiring customized techniques to achieve a natural, proportional, androgynous chest. This case report describes a 23-year-old transmasculine patient with macromastia and a tall, lean build who underwent gender-affirming mastectomy with free nipple grafts and muscular sculpture aimed at an androgynous esthetic. Pre- and postoperative evaluations showed marked improvements in body image, physical strength performance, and emotional well-being. Psychological assessments revealed significant reductions in body uneasiness and gender dysphoria, while human figure drawings demonstrated increasing bodily integration and identity congruence. A general improvement in physical performance over time was reported, particularly in upper body strength, with minor fluctuations potentially related to the surgical intervention and recovery phase. The narrative literature review supports these outcomes, highlighting satisfaction rates above 90%, minimal regret, and consistent gains in psychosocial functioning and sexual and mental health, including reduced anxiety and depression. This evidence reinforces that gender-affirming mastectomy is medically necessary, particularly when tailored to individual anatomical and esthetic needs, affirming identity and alleviating distress.