There are many reasons for constipation. The most common ones are spicy and irritating diet, too little intake of crude fiber food, disorder of intestinal flora and slow peristalsis. Generally speaking, to develop good eating habits, eat more fruits and vegetables, and drink plenty of water every day can soften the stool, increase the intake of crude fiber and increase the peristalsis of the intestine, which is conducive to the discharge of stool.