Many men have the problem of anal fissures, and repeatedly have blood in the stool or pain, resulting in frequent standing up and restlessness, which affects work and life. Trauma, some people go to the toilet because the stool is dry, and then too much force, resulting in anal lacerations, repeated several times will lead to lacerations aggravated, and the skin is damaged, slowly will appear anal fissure, and constipation is very common anal fissure. Infection. Some people may have chronic hemorrhoids or other anal diseases that are not treated thoroughly, resulting in damage to the anus, which can lead to anal fissures, which should be treated first by curing the original disease in order to solve the problem of anal fissures. The anal canal is small and damaged. Many people have a small anus that is not fully developed during development, which can lead to anal fissures that are easily damaged and easily infected. Anal fissures can affect your life and work, so you should treat them as soon as possible and eat a reasonable diet in order to recover quickly.