The Highly Protective Effect of Newborn Circumcision Against Invasive Penile Cancer

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Abstract
Objective.: We determined the relation between newborn circumcision and both invasive penile cancer (IPC) and carcinoma in situ (CIS) among adult male members of a large health maintenance organization.Subjects and Methods.: Circumcision status was ascertained by a combination of pathology reports, medical record review, and questionnaires for 213 adult male members of a large prepaid health plan who were diagnosed with IPC or CIS.Results.: Of 89 men with IPC whose circumcision status was known, 2 (2.3%) had been circumcised as newborns, and 87 were not circumcised. Of 118 men with CIS whose circumcision status was known, 16 (15.7%) had been circumcised as newborns.Conclusions.: Our results confirm the highly protective effect of newborn circumcision against IPC and the less protective effect against CIS.

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