Constipation is not the same as no exhaust, constipation will still be normal exhaust and may be more exhaust than before, unless there is an intestinal obstruction will lead to changes in exhaust and defecation, such as incomplete intestinal obstruction will cause exhaust and defecation decrease, and if it is a complete intestinal obstruction, will stop exhaust and defecation. Constipation is mostly caused by gastrointestinal dysfunction and slowed gastrointestinal peristalsis, and the stool is very dry and hard, which is more difficult to discharge, mostly seen in elderly patients with constipation or organic intestinal lesions. People with constipation are advised to eat more fresh fruits and vegetables, drink more water and eat more coarse grains to facilitate excretion. If the constipation is severe, you need to go to the hospital and cooperate with the specialist to give a detailed examination, and according to the results of the examination to give targeted medication.