Men do have rich imaginations, and they always give their most private parts some nicknames, which shows how much they cherish "it". Even so, in many countries around the world, in order to reduce the trouble in sexual life and reduce the incidence of sexually transmitted diseases, many men reluctantly choose to let "it" get a knife. Recently, a piece of information found a reason for men to “persecute” it. According to the New York Times, a U.S. government research report stated that circumcision of adult men can reduce the chance of contracting HIV through sexual intercourse by 60%. If circumcision can be widely adopted, it is expected that at least tens of thousands of people will be protected from AIDS. In South Africa alone, 2 million people can benefit within 10 years. As soon as the report came out, it caused controversy among many experts at home and abroad. Professor Li Hongjun, chief physician of the Department of Urology at Peking Union Medical College Hospital, expressed his opinion on this: "As long as the foreskin does not offend you, don't cut it." Circumcision cannot be relied on to prevent AIDS. Professor Li said that the reason why circumcision will reduce infection The risk of HIV is because the foreskin at the front of the male penis is easily exposed to HIV first. This part of the skin is relatively fragile and can easily break and bleed during sex, giving viruses more opportunities to invade the body. Circumcision removes exactly this potential risk. "But it is a bit far-fetched to say that circumcision can prevent AIDS. The measures to prevent AIDS are to stay away from high-risk sexual behaviors and wear condoms. With these two points, AIDS can be prevented almost 100%, so why bother with circumcision?" So, circumcision Can it reduce the incidence of penile cancer? Professor Li believes that in some cases, this is indeed the case. "But circumcision will also bring some new problems, so we suggest that as long as the foreskin does not offend you or cause damage to your development, urinary and reproductive functions, it is best not to circumcise it." You must have surgery. No matter which city you are in, you can always see some small advertisements posted on overpasses and telephone poles with words such as "Treatment of Foreskin" on them, as if this is a very serious disease. So, what exactly is foreskin? Professor Li introduced that the so-called excessive foreskin means that when an adult man's penis is weak, the glans is completely wrapped by the foreskin, but when the penis is fully erect, the glans is still not fully visible. Excessive foreskin can easily cause smegma to accumulate in the foreskin. If it is not cleaned for a long time, it will irritate the foreskin and glans, causing balanitis, foreskin stones, and even penile cancer. Before a child is seven or eight years old, the foreskin is relatively long, often covering the glans and the external urethral opening; after puberty, the penis grows rapidly, the foreskin automatically retracts, and the glans and urethral opening are exposed. According to statistics, 1 in 5 men has a slightly longer foreskin. "But this does not mean that all people with excessive foreskin should be circumcised. After circumcision, the delicate glans is easily exposed and hurts when touched. It may take a long time to adapt to the external environment; some circumcisions are not done well. Ideally, it will cause the foreskin to stretch and cause pain when the penis is erect. In fact, as long as you clean it more often, you can avoid the symptoms caused by excessive foreskin. "As for whether excessive foreskin affects sexual life, Professor Li believes that it cannot be generalized. "The glans of some people with foreskin may be more sensitive than normal people, and the pleasure during sex will be stronger. After circumcision, the glans is fully exposed, which will reduce its sensitivity and cause premature ejaculation. If the foreskin is too long, If it does affect your normal sexual life, you should receive treatment. "Phimosis is best treated. However, Professor Li also reminded everyone that the foreskin may cause phimosis, that is, the foreskin opening is too narrow, so that the glans of the penis cannot be exposed to the foreskin. "About 1/20 men suffer from phimosis. In this case, we recommend cutting it off. Because the glans of phimosis patients is bound by the foreskin, it is difficult to get the stimulation from the outside world, and the development of the glans may be restricted to a certain extent. In adulthood, Sexual life will also be affected. "Professor Li believes that for men with excessive foreskin, it is best to wait until puberty is completed before cutting off; for patients with phimosis, it is necessary to see whether the foreskin affects development and various functions. If so, they should be removed as soon as possible. Get treatment.