Constipation is defined as having less than 3 bowel movements per week, or difficulty in defecation, dry stools and low volume. There are many reasons for constipation, firstly, it is related to diet, spicy, greasy, low dietary fiber diet and indigestible food, which can not promote intestinal peristalsis can lead to constipation; secondly, it is related to exercise, when the amount of exercise is reduced, such as long-term bed rest, sedentary, etc., resulting in a relative weakening of intestinal peristalsis will lead to constipation; secondly, it is related to defecation habits, frequent non-defecation can lead to defecation reflex is inhibited, which will lead to habitual constipation; finally, it is related to intestinal diseases, such as intestinal tumor, hernia, etc. Lastly, it is related to intestinal diseases, such as intestinal tumor, hernia, intestinal tuberculosis, etc., which can lead to constipation. In addition, diabetes, hypothyroidism and uremia can cause constipation. It is recommended that patients with constipation should first improve their diet, maintain good eating habits, light diet, less greasy, spicy, prohibit smoking and alcohol, and increase activities appropriately; those with heavy stools can be given senna leaf preparation, aloe vera preparation, and hemp seed preparation to laxative. If there is no effect of medication, consult a hospital promptly.