Generally boys can be circumcised between the ages of 8 and 16, but it is impossible to generalize due to individual circumstances. Circumcision is the removal of the overgrown foreskin to cure the disease and improve the prognosis. As the foreskin, when it is too long, its sebaceous gland secretions and tissue flakes composed of foreskin scale may be secondary to infection, patients may also experience difficulty in urination, redness and swelling of the foreskin opening, and severe pain. Therefore, when there is an abnormal physical discomfort, can be combined with the condition, under the guidance of the doctor to take the circumcision, can be performed at the age of 8 to 16 years old. The surgery should not be performed too early in case the patient is too young to tolerate the anesthesia, or too late in case it affects the development of the penis. After circumcision, patients need to keep the local skin clean and do not scratch the skin to avoid secondary infection. If there is any discomfort such as local bleeding after the operation, the patient should report to the doctor in time and take relevant treatment measures.