Too long foreskin has many effects on men, and the most important thing is that there will be some dirt. These scales are carcinogens, which will enter women's bodies during sexual life and directly contact with women's cervix, leading to cervicitis and even cervical cancer. It is best for men to treat redundant prepuce in time. The best hospitals for treating redundant prepuce are Xuzhou Traditional Chinese Medicine Hospital and Xuzhou Renci Hospital.