Past, Present and Future Innovations
Looking back at the origins of Metoidioplasty and forward to its surgical future, this deep dive traces how a once-niche procedure is being transformed by global innovation, from early urethral techniques in Japan to recent breakthroughs in Iran, the U.S., the Netherlands and Brazil. More »
Metoidioplasty Explained
Metoidioplasty is a gender-affirming surgery that creates a small-sized phallus using existing genital tissue. Metoidioplasty is a good option for those with sufficient clitoral growth from being on testosterone hormone replacement therapy. It's a less invasive and more affordable surgery than Phalloplasty. Average penis length from a "Meta" is 1.5-2 inches.
How Metoidioplasty Works: Hormone Replacement Therapy, in the form of Testosterone and Dihydrotestosterone (DHT), gradually enlarges the natal clitoris, which is analogous to the penis. Metoidioplasty surgery involves cutting the surrounding labial tissues, and in some cases the suspensory ligament, to "free up" and reposition the clitoris in a more forward position, to more closely approximate the position of a penis. Complimentary procedures are optional, such as Vaginectomy, Urethral Lenghtening, Scrotoplasty and testicular implants.
Learn more about Metoidioplasty:
Semirigid Implant for Meta
The ZSI 100 D4 semirigid implant represents
a potentially valuable option to enhance metoidioplasty outcomes by
preserving length, adding rigidity, and improving urinary function.
Learn more about this specialized implant and how it works.
Non-Binary Options for Metoidioplasty
Historically, gender-affirming
bottom surgery has been binary in nature: Female to Male or
Male to Female. However, there's an increasing number of
surgeons who offer an individualized approach to
Metoidioplasty that's proving appealing to non-binary people seeking bottom surgery.
Below the Belt: Genital Talk by Men of Trans Experience
If you're
curious about what trans guys think about their junk in the
context of gender transition, you'll definitely want to pick
up a copy of Below the Belt!
Dr. Chen is a highly experienced Reconstructive Urologist in San Francisco who specializes in bottom surgery procedures for transmasculine individuals. He has performed hundreds of Metoidioplasty, Scrotoplasty, Testicular Implant and related surgeries, and has deep expertise in urological repairs. More »
Reconstructive Urologist in San Francisco who is one of the most experienced Metoidioplasty surgeons in the world. More »
Dr. Meltzer is a plastic and reconstructive surgeon who is globally recognized as one of the leading surgeons in the field of Gender Affirming Surgery. He was among the first surgeons in the U.S. to offer Metoidioplasty and has experience with the procedure that few surgeons in the world can claim. Dr. Meltzer offers Metoidioplasty in Scottsdale, Arizona. More »
One of the first surgeons in the U.S. to offer Metoidioplasty and remains among the most experienced worldwide. More »



