Benefits of circumcision: 1, circumcision prolongs sexual life, 2, circumcision avoids cross infection, 3, circumcision reduces the probability of penile cancer, 4, circumcision promotes the growth and development of male genitalia, 5, circumcision prevents inflammation from worsening, 6, circumcision prevents abnormal development of glans penis, and 7, circumcision prevents infertility. Disadvantages of foreskin operation: 1. Because private hospitals unilaterally publicize the benefits of circumcision, many people find that it is completely different from what they expected after surgery. 2. Surgery will inevitably cut off a part of the frenulum, which is one of the three sensitive areas of men, so it will affect the experience of male pleasure and even cause sexual apathy. If the male friend's foreskin is too long, he should go to the hospital for examination and receive corresponding treatment in time, so as not to affect his daily life and cause some harm to his body. Remember never to avoid medical treatment.