There are various reasons for foreskin fissures. Firstly, it is possible that the foreskin opening is very small and forcing the foreskin open causes foreskin fissures. Secondly it can also be due to long term circumcision, glansitis, and the tissue of the foreskin is very brittle, which can easily lead to foreskin fissure after erection. Then it may also be that the vagina is not sufficiently lubricated during sexual intercourse and forced vaginal penetration causes the foreskin mouth to have a split. It is recommended that if there is a fissure in the foreskin, one must see a urologist at the hospital. The doctor can make a valid judgment by examining the fissure and asking the patient’s medical history. There is inflammation should control the inflammation and keep it dry, if it is a small circumcision should be performed circumcision.