Before circumcision, when the penis is in an erect or weak state, the glans is not exposed at all; after circumcision, the glans is completely exposed. Circumcision is the removal of excess foreskin from the top of the penis so that the head of the penis can be exposed, and is the most effective treatment for phimosis and circumcision. Under normal circumstances, the glans should be fully exposed when the penis is in an erect state as well as in a state of weakness. If the foreskin is too long, the glans cannot be exposed in a state of weakness, but after the surgery, this situation will disappear and the glans can be fully exposed. The indications for the surgery are narrow opening of the foreskin in infants and young children, affecting urination or recurrent infections; in adults, the foreskin is too long, recurrent infections, sexual discomfort or patients with phimosis. If the patient suffers from phimosis, he should go to the hospital as soon as possible to receive circumcision surgery, which has a certain positive significance in reducing some genital infections and reducing the chances of female gynecological diseases. Penile discomfort may occur after the operation, which is normal. It is best to rest for a few days after the operation, you can lie down on the bed, try to move as little as possible to prevent the wound from rupturing, try to wear loose pants. At the same time, do not eat some cold and spicy food after the operation, diet as light as possible, do not touch the genitals with your hands after the operation, so as not to cause infection.