If the foreskin is too long, it doesn't have to be cut. Excessive prepuce is a common and frequently-occurring disease in urology. All baby boys are born with foreskins. With the growth of age, some of them can be normal when they reach puberty. If there is still too long foreskin after puberty, especially if there is foreskin infection, foreskin balanitis, foreskin stenosis and so on, the foreskin is not cleaned. After erection, the foreskin ring is narrow, which may lead to foreskin edema and incarceration. Sexual life after marriage is easy to cause infection and needs circumcision. Otherwise, you can't do this. But pay attention to cleanliness. When cleaning, the foreskin should be turned up and the secretion near the coronal groove in the foreskin should be thoroughly cleaned.