The treatment of redundant prepuce requires circumcision. It is suggested to go to the hospital for a detailed physical examination to find out whether the foreskin is too long, whether it is complicated with phimosis and whether it is complicated with abnormal penis development, so as to decide what kind of operation to choose. If the foreskin is simply too long, there is no phimosis and stricture outside the foreskin, there is no need for surgery. Surgery can reduce the incidence of glans penis infection and penile cancer. However, as long as the patient can do personal hygiene, clean regularly and keep the local area clean and dry, the incidence of infection can also be reduced without surgery. However, patients with a history of glans penis infection should undergo circumcision as soon as possible to prevent recurrence. For patients with phimosis complicated by excessive prepuce, it is recommended to seek medical advice as soon as possible. For penile dysplasia or urethral stricture, or bending caused by pulling during erection, it is suggested to carry out related plastic surgery as soon as possible to completely eradicate the redundant prepuce.