It is dangerous for a bedridden elderly person to go more than twenty days without defecation. There may be intestinal obstruction, cerebral infarction and other cardiovascular diseases. 1. Intestinal obstruction: bedridden elderly people do not defecate for more than twenty days, there may be fecal obstruction caused by intestinal obstruction, resulting in intestinal contents can not run normally, through the intestinal tract, abdominal pain, abdominal distension, nausea, vomiting, and stopping defecation, etc., but also shock, peritonitis, localized abdominal elevation and other symptoms, need to be highly vigilant about whether there is an intestinal obstruction. 2. Cardiovascular disease: bedridden elderly more than twenty days without defecation, there may be constipation and other conditions, when the elderly force defecation, may induce myocardial infarction, cerebral infarction and other cardiovascular diseases, respiratory arrest, fainting, carotid artery pulsation disappearance, delirium and other symptoms. Bedridden elderly more than twenty days without defecation, there may be long-term bedridden caused by the slowing of intestinal peristalsis. It is recommended to consult a doctor in time to clarify the diagnosis, under the guidance of the doctor for targeted treatment.