Anal fissures are caused by thick, hard stools, difficulty in defecation or constipation that cause bleeding in the anal mucosa, and the specific treatment methods are as follows: 1. Eat more vegetables and fruits: To treat anal fissures, you need to make the stool loose and soft, for example, you can eat more vegetables and fruits, exercise more to promote intestinal peristalsis, and you can also eat probiotics to regulate intestinal flora so that the stool is easier to defecate. 2. It is very important for the healing of anal fissures. 3, medication: if there is constipation and anal fissures through diet or probiotic conditioning, you can eat lactulose or four mills soup and other drugs that make the stool more loose and soft, so that the stool is discharged.