Cramp-like sensation in the anus is caused by anal sphincter spasm, anal sphincter spasm is caused by the muscles in the anal area are stimulated, the occurrence of irregular contraction caused by pain in the anal area, due to persistent spasm so that the anus is narrowed, but also prone to cause difficulty in defecation. Common adverse stimuli make the anal area inflammation, stool dryness is also prone to anal cramp-like pain. It is recommended to pay attention to the anal area hygiene, when inflammation occurs local application of anti-inflammatory ointment treatment. Pay attention to reasonable diet, do not eat spicy, stimulating food, eat more crude fiber food, eat more vegetables, fruits, appropriate exercise, do not sit for a long time, to develop the habit of regular bowel movements, do not hold stool.