Simple Definition:

Circumcision is a surgical procedure performed to remove the foreskin [the loose skin that covers the tip of the penis] of a male’s penis.

Some families choose to have their newborn baby undergo circumcision for cultural or religious reasons.

Very Simple Definition:

Circumcision is a surgery to remove the skin on a boy’s penis.

Some boys have circumcision when they are born because of their family’s beliefs or customs.