Difficulty in defecation and anal distension are due to the stimulation of diseases at the rectum and anal canal. Consider: 1, hemorrhoids, especially internal hemorrhoids prolapse incarcerated blockage of the anus will lead to anal distension, stool discharge difficulties. 2, female patients with uterovaginal prolapse, the prolapsed uterus and vagina on the rectum caused by compression of the rectum pushed to lead to the rectal pressure narrowing, resulting in difficulty in defecation, the anus in the outer pressure stimulation of the feeling of distention; 3, prolapse of the mucosa of the rectum, resulting in anal distension and difficulty in defecation. 4, the anal area Skin and soft tissue infection, inflammation spread stimulation caused by rectal-anal tube dysfunction caused by defecation difficulties and anal distension discomfort. 5, there is no long-term constipation history. To be clear which is the cause of symptomatic treatment, usually pay attention to drink more water, eat a light diet, avoid spicy, stimulating food, to regular work and rest, do not stay up late, avoid sedentary.