Circumcision means that the foreskin 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 a prepuce. The prepuce 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. Because the foreskin cannot be turned up, it can make a lot of pollution accumulate in the foreskin and even stones can appear, causing foreskin penile head infection and urethral exocrinitis. The danger of circumcision or circumcision 1, hinder penis development: in adolescence because the penis head is tightly wrapped by the foreskin, do not get the outside world should be stimulated, the development of the penis head is a great constraint, resulting in the development of mature sex organs penis head crown circumference is obviously small, affecting sexual pleasure. 2, resulting in inflammation of the penis: the foreskin is rich in sebaceous glands, can secrete a lot of sebum. The long foreskin will make the secretions of the sebaceous glands in the foreskin can not be discharged, sebum and urine precipitates synthesized cheese-like odor “foreskin scale”. The foreskin scale is suitable for bacterial growth, so it can cause inflammation of the penis head and foreskin. 3, damage to kidney function: due to the inflammation of the penis, can cause the urethral or front urethra narrow, resulting in urinary difficulties. Long-term difficulty in urination, the function of the kidneys will be damaged. 4, cause premature ejaculation: because of the foreskin is too long, the glans can not well contact with the outside world, so the local nerve sensitivity is quite high, once sex, friction will not two times will ejaculate, long-term, it will form habitual premature ejaculation. 5, and even cause cancer: long foreskin and circumcision may induce penile cancer. Circumcision is a carcinogenic substance, 85%-95% of penile cancer patients are circumcised or circumcised. Men with long foreskin should go to hospital for surgery as early as possible. The advantages of this surgical method are as follows: 1. short operation time, no sutures, only 4-6 minutes, which is significantly shorter compared with traditional surgical circumcision, thus reducing the chance of infection; 2. less bleeding or almost no bleeding, which reduces the patient’s fear; 3. easy to control the length of the tether and the amount of foreskin removal during the operation. The operation is relatively simple and easy for medical personnel to master; 5.No need to change medication after the operation, which has no significant impact on patients’ daily life and work; 6.You can take a bath after the operation, which is especially suitable for the operation in summer; 7.The postoperative scar is not obvious, the appearance is natural, less infection occurs, and patients are highly satisfied. Male circumcision can significantly reduce the risk of male acquired HIV infection by about 60% and is recommended by the World Health Organization (WHO) and UNAIDS as an important intervention in HIV prevention strategies. The research finding that circumcision can prevent HIV was named one of the top 10 medical breakthroughs of 2007 by Time magazine. As a result, the medical community has placed much greater emphasis on circumcision. Recently, a growing body of research has demonstrated the potential health benefits of male circumcision for men and their partners. Male circumcision reduces human papillomavirus (HPV) infection, the most common cause of all cervical and penile cancers, by 32-35%. Male circumcision reduces herpes simplex virus (HSV) infection by 28-34%.