Circumcision is the surgical removal of the foreskin of the penis. It is an elective surgery and is most commonly performed on newborns that are 24 hours old. Circumcision may also be performed on older boys or men in order to treat problems with the foreskin or if the tip of the penis is inflamed. If there are no problems, circumcision is not medically necessary and it may help to consider your personal and cultural preferences when making the decision. Problems resulting from circumcision are rare and the most common problems are pain, bleeding, infection of the circumcision site and opening of the urethra, and irritation of the exposed tip of the penis. These are all easily treated.