The foreskin refers to the skin of the penis that is folded into a double layer at the head of the penis. In infancy, the foreskin is long and wraps around the penis so that the glans and urethral orifice cannot be revealed, which is physiological prepuce. With the growth of age, the penis and foreskin gradually develop, and at puberty, the foreskin retreats backward to reveal the glans in adulthood, but in about 30% of adults, the foreskin completely covers the glans of the penis. The foreskin as a result of millions of years of human evolution, its protective role can not be ignored, but at the same time, its potential for some hidden dangers also bring us a lot of trouble. The foreskin is long and circumcised 1. The foreskin is long and covers the urethral opening, but can be turned up to reveal the urethral opening and the head of the penis, but is often accompanied by the circumcision. The circumcision 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 the head of the penis. 2, simple circumcision if there is no recurrent inflammation, especially the penis head can be exposed, without surgery. The actual fact is that you will be able to get a lot more than just a few of the most popular and most popular items. If the circumcised person has recurrent glansitis, it is best to have surgery after controlling the acute inflammation. If there are no complications with congenital prepuce or circumcision in infancy or early childhood, treatment is not necessary for the time being, and the need for surgery will be considered after observation until childhood or adolescence. The actual fact is that you can find a lot of people who are not able to get a good deal on a lot of things. The actual fact is that you can get a lot more than just a few of these. The actual fact is that you can find a lot of people who are not able to get a good deal on a lot of things. The actual fact is that you can find a lot of people who are not able to get a good deal on a lot of things. If there is a more serious infection, to actively anti-inflammatory treatment, there are systemic symptoms can be systemic application of antibiotics. The foreskin tether injury 1, foreskin tether is a skin fold that connects the glans to the penis body right below the penis. Through the coronal groove and the glans urethral orifice below connected, there are rich blood vessels inside. The stretching force is strong and can be significantly elongated when the penis is erect, and significantly shortened when the penis is soft and contracted. Injury to the foreskin tether is usually caused by tearing during sexual intercourse or masturbation with excessive force, causing painful bleeding. Congenital ties are too short or underdeveloped people are more likely to injury, ties injury after healing, due to the formation of local scars, again during sex may cause ties again tear bleeding. 2, foreskin ties injury should be treated as a matter of urgency, the injury bleeding in time to suture (preferably within 3 hours). Failure to emergency suturing, to local debridement, while keeping the local wound dry and clean, to prevent infection. After the laceration has healed and formed a scar, penile ligature shaping should be considered to avoid causing pain during sexual intercourse and re-tearing in the future. Foreskin inlay edema 1, circumcision or foreskin orifice narrow foreskin is too long, such as the foreskin forced up and not reset in time, the narrow foreskin mouth can be strangled in the penis, obstructing the distal foreskin and penis head blood flow back, resulting in these parts of the swelling, this situation is called foreskin inlay. Most of the foreskin embedded caused by sexual intercourse or masturbation, in serious cases may occur the head of the penis necrosis. 2, if the foreskin is embedded, we must deal with emergency, most of them can be reset by manipulation. If the manual reset fails or the imbedded time is long, a dorsal circumcision should be made; if the imbedded foreskin has broken or the situation allows, emergency circumcision can be performed. Induced penile cancer The accumulation of foreskin scale is easily caused by long foreskin or circumcision, and the chronic stimulation of foreskin scale is the main reason to induce penile cancer. Circumcision may induce penile cancer for the following reasons: (1) long-term direct irritation; (2) inducing glansitis of the foreskin, and long-term continuous inflammatory stimulation will cause deterioration of local tissue cells of the penis; (3) poor environment of the head of the penis, which may lead to precancerous lesions of penile cancer, such as penile keratosis, penile papilloma, condyloma acuminata, penile leukoplakia, proliferative penile erythroplakia, etc. Such lesions may easily turn into penile cancer. Such lesions can easily turn into penile cancer.