When a male is born, the foreskin wraps around the head of the penis and cannot be turned up. As the child grows, the adhesions are absorbed, the erection of the penis expands the foreskin and the penis grows, the head of the penis is gradually revealed, the foreskin recedes to the coronal sulcus and foreskin development is complete. The prepuce is the foreskin covering the urethral opening, but can be turned up to reveal the urethral opening and the head of the penis, but often accompanied by the prepuce. The prepuce is the narrowing of the foreskin or the adhesion of the foreskin to the head of the penis so that the foreskin cannot be turned up to reveal the urethral opening and head of the penis. Therefore, a lot of pollution can accumulate in the foreskin and even stones can appear, causing foreskin penile head infection and urethral ectopia. The inflammation makes the urethral orifice narrow, causing obstruction of urination, leading to urinary tract infection and even urinary retention, long-term chronic stimulation, can induce infection and cancer, white spot disease and stones, seriously affecting the health of male patients, so if there is chronic inflammation in the foreskin and does not heal for a long time, regardless of age, surgery should be done before it is too late to facilitate the control of inflammation; of course, the best time to operate is to choose before any secondary lesions occur The best time to operate is before any secondary lesions appear. I recommend that the age of surgery is 5-7 years before school. The purpose of the surgery is to expose the head of the penis so that there is no dead space for infection. The operation has the following advantages: 1, the operation time is short, generally only 3-5 minutes for skilled people; 2, no bleeding during the operation, or very little bleeding; 3, no residual foreign body in the body; 4, easy post-operative care, 5, few post-operative complications; 6, beautiful appearance. Postoperative care precautions: take oral antibiotics for 3-5 d after surgery, and wash the wound surface with 3% boric acid solution 3 times/day for 10-15 minutes/time. The wound pain of the child is obvious 1-2 days after surgery, it is recommended to use compound lidocaine cream to rub the penile skin to relieve the pain. Avoid strenuous activities after surgery, and the plastic ring will fall off by itself around 7-12 d. If the plastic ring does not fall off 12 days after surgery, it is recommended to remove the plastic ring at the hospital outpatient clinic.