Circumcision reduces the bacteria that can live under the foreskin. This includes bacteria that can cause urinary tract infections or, in adults, STIs. Circumcised infants appear to have less risk of urinary tract infections than uncircumcised infants during the first year of life.

Why would you not circumcise your baby?

A baby who is not circumcised has a one in 100 chance of getting a UTI in the first year of life. A slightly lower risk of getting sexually transmitted diseases (STDs), including HIV. A lower risk of cancer of the penis. However, this is very rare in both circumcised and uncircumcised men.

Is circumcision good or bad?

When weighing the pros and cons of circumcising your baby, the most clear-cut medical benefits of circumcision are a four- to 10-fold decrease in the risk of urinary-tract infections during the first year of life, and a three-fold reduction in the risk of penile cancer among adult men.