As elderly people age, the peristaltic function of the colon decreases, so many patients become constipated, that is, they do not have a bowel movement for several days. If you do not have a bowel movement for 3 days, on the one hand, we should look at the past bowel movements of the elderly, such as whether there is a past history of constipation, whether the number of bowel movements is usually very long, usually only 2-3 days to have a bowel movement, and the shape of the bowel movement is also more laborious, and the discharged stool is like granular constipation type stool. If the elderly do not have a bowel movement for 3 days, there is no obvious nausea, vomiting, abdominal pain, stopping the performance of exhaustion, and no previous history of serious digestive tract diseases, it may be a simple constipation caused by the patient, this time to give the patient more fruit, drink more water, abdominal massage, really can not go to the hospital to give the patient some mild drugs to promote defecation. If the patient does not have a bowel movement for 3 days and has obvious nausea, vomiting, stomach pain, and no exhaustion, it may become an obstruction, then you cannot observe at home, and must go to the hospital for further diagnosis to rule out and clarify what kind of disease is causing the elderly not to have a bowel movement, so as not to miss the diagnosis and delay the disease.