A. Does circumcision require surgery? It is normal for children to be circumcised. As they grow older and their penis develops, the foreskin can recede on its own to expose the head of the penis. There is no need to operate prematurely. If the foreskin is repeatedly infected, the head of the penis adheres to the foreskin, the prepuce accumulates in the foreskin cavity and the foreskin is narrowed, the foreskin can be dilated with vascular forceps under local anesthesia to separate the adhesions, remove the prepuce and apply erythromycin ointment on the surface of the head of the penis. In the future, pay attention to cleaning the foreskin every day to prevent further adhesions. If the adult foreskin is too long, if the penis head can be exposed when the penis is erect and does not affect sexual life, surgery is not necessary, as long as attention to local cleaning can be. If the head of the penis and the foreskin are adherent due to repeated infections and the narrowing of the foreskin, which affects urination and sexual life, surgery should be actively taken. Second, when is the best time to do circumcision? The choice of when to do circumcision depends on the condition. In case of foreskin impaction, it is necessary to immediately reset the foreskin manually and surgically. Patients with circumcision must be operated and operated as soon as possible. Circumcision in children is best done before school age. Adults with long foreskin are recommended to have their foreskin cut off before marriage. What are the benefits of preventive circumcision? 1.Prevention of penile cancer: Recent studies found that only circumcision of newborns can prevent the occurrence of penile cancer. Even if an adult is circumcised, it is not certain that he or she will not develop penile cancer. Male newborns of the Jewish ethnic group, who travel to be circumcised on the 8th day of life, have almost no penile cancer in that ethnic group. The incidence of penile cancer is also lower in Islam, where boys are circumcised within 4 to 10 years of age. In order to prevent penile cancer, the earlier circumcision is done, the better. 2.Prevent your wife from cervical cancer. There is a kind of bacteria in the circumcision that interacts with cholesterol to produce a carcinogenic substance, which can cause cervical cancer in women. A pathological survey found that the proportion of cervical cancer in women whose husbands had been circumcised was much lower than in women whose husbands had not been circumcised. 3.Prevent sexually transmitted diseases. During sexual intercourse, the penis is pumped back and forth in the vagina, and the overlong foreskin is subjected to various pulling forces, often resulting in some tiny wounds. The secretions carrying viruses and bacteria ooze out from these tiny wounds, or the viruses and bacteria in women’s vaginas thus invade, causing infectious diseases. 4, to prevent the head of the penis circumcision produced. 5.Prevent the foreskin from being embedded.