Metoidioplasty and Phalloplasty: Options for Masculinizing Bottom Surgery Written by Giovanna D’Ambrosio. Medically reviewed by Ellie Zara Ley, MD on February 6, 2024. Transmasculine and Nonbinary individuals can sometimes feel a sense of incongruence with their natal genitalia–meaning the genitalia that they were born with. This feeling is frequently referred to as bottom dysphoria, and influences how trans-masculine people move through the world. Some patients express that these feelings are particularly distressing in moments of intimacy or while using the bathroom. Masculinizing techniques for bottom surgery, also known as “FTM” bottom surgery can help alleviate these feelings. The two methods available are metoidioplasty and phalloplasty, often referred to as “meta” …