What is Top Surgery? Medically reviewed by Brianna Smith on April 6, 2026. Top surgery is an umbrella term that encompasses different gender-affirming surgeries that help treat the gender dysphoria that transgender, non-binary and gender-expansive patients feel with their chest. Top surgery includes: Chest reconstruction top surgery: Sometimes called FTM, chest masculinization surgery or non-binary top surgery, it involves the removal breast tissue and any excess skin to flatten the chest. Breast reduction surgery: The volume of the breasts is significantly reduced for non-binary and transmasculine patients. Breast augmentation surgery: Sometimes called MTF top surgery, we increase the volume of the breasts with implants (silicone or saline) and/or liposuction-fat grafting. …