With the gradual popularization of scientific knowledge, many parents are paying more and more attention to the problem of penile development in children. I often meet some parents who ask what kind of circumcision is needed for children; how old is the age when the surgery is more appropriate, what precautions should be taken after the surgery, etc. For this reason, I would like to say my opinion. First of all, the concept of circumcision and circumcision are different. The so-called prepuce, that is, the foreskin mouth narrow, basically can not flip the foreskin. The circumcision needs to be treated with surgery as early as possible. In the early stage (usually before 6 years old), children with poor self-control need general anesthesia to operate as early as possible. In fact, many parents are very apprehensive about general anesthesia in children, so they choose to operate under general anesthesia until they have no choice but to do so. I have tried several cases of circumcision under local anesthesia at the age of about 6 years old, and the results were very good. There are several factors that combine to determine (1) good cooperation of the child, who can understand the doctor’s words, strong self-control, and discriminate between pain and itching; (2) good results of local anesthesia; (3) skilled operation, fast, less than 20 minutes to complete all operations. In contrast, circumcision can be operated at a later date, unless repeated infections, and those who are absolutely too long and easily hide dirt need to be operated as early as possible. Therefore, it is important for parents to distinguish that the timing of surgery is different in the two cases. In some cases, the foreskin is not too long, the foreskin is slightly narrow, the foreskin can be turned over in its natural state, but there is pain and tightness at the ligature or foreskin when erect, and in such cases surgery is also needed. This is especially true for adolescents, who are prone to foreskin impaction during their first sexual intercourse and require emergency surgery. Because the shape of the penis, the distribution of the foreskin, the length of the tether, and the degree of obesity vary from person to person, the surgeon needs to implement a specific surgical approach before surgery, such as how much to remove, whether to cut the inner or outer plate, how to deal with the tether, and how to preserve the skin on the ventral side. For obese children or patients, extra attention should be paid to the circumcision, especially for those with occult penis and combined suburethral cleft, extra attention should be paid to protecting the foreskin, which should not be removed casually, otherwise it will be regretted for life. It is wise to go to a regular hospital and grasp the strict surgical indications and the correct surgical method.