Parents often bring their children to the clinic with redness and swelling of the genitals, painful urination and even pus coming out of the foreskin. This is the inflammation of the foreskin caused by the prepuce, and parents are often very nervous about this, so we need to educate parents about circumcision and prepuce. What is prepuce? The foreskin of a child wraps the entire head of the penis, and as he grows older, the foreskin will gradually recede to the coronal groove of the penis, and if the head of the penis can still be completely wrapped at this time, it is called circumcision. 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. If there is inflammation of the foreskin, early surgery should be performed. What is circumcision? Circumcision refers to the narrow opening of the foreskin, which cannot be turned up to reveal the head of the penis. There are two types of prepuce: congenital prepuce and acquired prepuce. When the mild epithelial adhesions between the inner plate of the foreskin and the surface of the head of the penis are absorbed, the foreskin recedes and the head of the penis is exposed. If the adhesions are not absorbed, congenital prepuce is formed. Acquired prepuce is mostly secondary to inflammation of the foreskin of the head of the penis, which causes scar contracture of the foreskin opening. If the prepuce is serious, it can cause difficulty in urination or even urinary retention. When foreskin scale accumulates, there can be a tingling sensation on the head of the penis. Patients with non-children circumcision must use surgery as soon as possible to solve the problem, otherwise long-term chronic stimulation can induce infection and cancer, leukoplakia and stones. 4 major hazards of circumcision 1, induced premature ejaculation: childhood is not timely circumcision, affecting sexual function in adulthood. 2, inflammation of genital organs infection: cause urethral or anterior urethral narrowing, causing difficulty in urination. Long-term difficulty in urination, the function of the kidney will be damaged. 3, affect the health of the partner: during sex men bring bacteria into the body of the sexual partner, bacteria directly invade the vagina and cause infection, inducing gynecological inflammation. 4, affect fertility: induce prostatitis, which has an impact on the mobility of sperm in male semen and the viscosity of semen. When should I have the surgery? This is a question that many parents will ask. Before answering this question we need to understand the physical development of the boy. According to the development of the boy can be divided into the following two cases: Childhood prepuce The prepuce of children under 3 years old mostly disappears on its own with the growth of age, we do not recommend surgery; another part of children who repeatedly retract the foreskin upward, expanding the opening of the foreskin sac, but still can not reveal the head of the penis, it is recommended that the earlier the circumcision is done, the better. If the foreskin is too long in adolescence, it needs to be operated as soon as possible. Adolescents are more hygienic, and since they have not yet started having sex, they can avoid various complications. The post-operative recovery is faster and the wound will slowly become lighter and lighter as the reproductive organs develop and grow, making it no different from normal skin, while the development of the penis will not be hindered after the removal of the overgrown foreskin. The best age for surgery No matter what age you are, circumcision can be performed as long as the foreskin deformity is found. Generally speaking, the best age for circumcision is between the ages of 10 and 16.