The most common gender affirming surgery is breast augmentation -- in cis (non-trans) women.

The regret rate is around 20%.

Gender affirming surgeries in trans people have around a 1% regret rate.

Guess which people need approval from a mental health provider...

@joelle OMG I’m trying to remember the AWESOME comedic novel I read where a cis woman had breast augmentation. It was HILARIOUS. I think it might have been a Kathy Lette novel. But the regret was largely to do with pain & maintenance. I bet the difference in regret rate relates to identity instead of vanity.