Doctors, what are the health benefits of circumcision?

Depends on phimosis. There are no health benefits from circumcision if foreskin retracts easily and subject keeps his penis clean. There are reports from Africa that it reduces risk of HIV by 50%. However, if there are considerable benefits if foreskin is too tight to retract easily (phimosis) as subject will now be able to remove smegma with ease, keep penis nice & sex will be much pleasanter.