Circumcision Benefits and Risks

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During the first 15 months of life: Out of 100 baby boys who are circumcised, 0 will get a urinary tract infection, compared to 2 out of 100 who are not circumcised. 0 out of 100 baby boys who are circumcised will have tightening of the foreskin, compared to 3 to 4 out of 100 who are not circumcised. Up to 30 out of 100 baby boys who are circumcised will have bleeding from the procedure, compared to 0 out of 100 baby boys who are not circumcised.

The information shown here is based on the best available evidence about UTIs, phimosis, and heavy bleeding.

Current as of: August 22, 2019

Author: Healthwise Staff
Medical Review: Adam Husney, MD - Family Medicine
Kathleen Romito, MD - Family Medicine
Martin J. Gabica, MD - Family Medicine




The Health Encyclopedia contains general health information. Not all treatments or services described are covered benefits for Kaiser Permanente members or offered as services by Kaiser Permanente. For a list of covered benefits, please refer to your Evidence of Coverage or Summary Plan Description. For recommended treatments, please consult with your health care provider.