Other studies give a much smaller difference, and the UTI rate in girls is much greater than boys, whether circumcised or not. A lower risk of getting cancer of the penis . However, this type of cancer is very rare in both circumcised and uncircumcised males. Prevention of foreskin infections. They've got us there.
Circumcision absolutely prevents all foreskin infections.
Prevention of phimosis , a condition in uncircumcised males that makes foreskin retraction impossible. Not necessarily a problem. Easier genital hygiene. As with any surgery, circumcision has some risks. Complications from circumcision are rare and usually minor.