Constipation is a clinical symptom. Reduced frequency of bowel movements, dry and hard feces, and difficulty in defecation can all be collectively referred to as symptoms of constipation. 1. Decrease in the number of bowel movements refers to the decrease in the number of bowel movements when the number of bowel movements is less than 3 times a week, normal people usually have 1 to 2 bowel movements a day or 1 time in two days. 2. Hard and dry feces is also a symptom of constipation. Normal adult feces should be soft and banana-like. 3. Difficulty in defecation refers to the abnormal difficulty in discharging feces, which is due to the slow discharging of feces and the absorption of water, which leads to the difficulty in discharging feces. If you are constipated for a long period of time, you should go to the hospital and complete the relevant examinations, such as fecal tests, colonoscopy and other tests, to make a clear diagnosis. Constipation patients should avoid overeating, so as not to aggravate the burden on the intestinal tract, daily moderate exercise, increase gastrointestinal peristalsis. If the symptoms can not be relieved can be under the guidance of the doctor to take laxative drugs, such as lactulose and other drugs.