Circumcision is most commonly seen in children, and since the majority of circumcisions are true in the preschool years and beyond, surgery is generally recommended in the preschool years. Circumcision is an outpatient urological procedure, usually performed under local anesthesia. The circumcision is usually performed under local anesthesia. Most of the circumcision before the age of 3 is physiological, and with the growth and development of the foreskin, part of it will gradually reveal the glans, so it can be treated without surgery for the time being. In the preschool period, if there is still a prepuce, most of them are true prepuce, and surgery is recommended. Surgery during this period is less painful, heals better, has less scarring and is more aesthetically pleasing. If the recurrence of the circumcision glans, it is recommended to advance the operation. Surgical operations need to be carried out in the regular public hospital urology department.