Constipation can lead to abdominal distension, indigestion and cause a large stomach, there are many causes of constipation, including bad habits, mental and psychological factors, intestinal lesions, etc., should be clear causes, symptomatic treatment. Common causes 1, bad habits: drinking too little water, lack of crude fiber diet, so that the volume of stool shrinkage, increased viscosity, movement in the intestine slowed down, excessive absorption of water and constipation. Some people do not develop the habit of regular defecation, which may cause constipation caused by the inhibition of the defecation reflex. In addition, the elderly due to gastrointestinal function and obesity factors, resulting in reduced activity, prone to constipation; 2, mental and psychological factors: mental tension, anxiety, work stress is prone to constipation; 3, intestinal lesions: suffering from inflammatory bowel disease, tumors, hernia, rectal prolapse, congenital megacolon and other diseases, prone to functional export obstruction caused by defecation disorders. Adhere to the exercise measures 1, adhere to the exercise: do exercise within reach, such as walking, walking or hands massage the abdomen several times a day to enhance gastrointestinal motility; 2, develop good bowel habits: can practice defecation once a morning, even if there is no bowel movement, can wait a little to form a conditioned reflex; 3, reasonable diet: eat more crude fiber grain and vegetables, fruits, beans, drink more water, drink at least 1500ml, especially a cup of warm water every morning or before meals, can effectively prevent constipation. In addition, you should eat some food with laxative effect, such as black sesame, honey, bananas, etc.; 4, disease treatment: those with intestinal lesions actively treat intestinal diseases, such as constipation caused by tumors, should be timely surgery, if necessary, radiotherapy.