Elderly constipation enema is harmful, may cause perforation, bleeding and other injuries, or stimulation by drugs to cause intestinal infection. Elderly people appear constipation in the enema treatment before, need to assess the patient’s cardiopulmonary function, in the operation process need to be closely observed, found that the elderly pale, cold sweat, need to immediately stop the enema. If the enema is not appropriate, it may bring some harm, because the elderly intestinal wall is relatively weak, may cause perforation, bleeding and other intestinal injuries, intestinal stimulation by drugs may cause inflammation, enema treatment changes the normal intestinal flora environment, easy to induce intestinal infection. Elderly constipation enema is harmful, it is recommended that the treatment of constipation under the guidance of a doctor, not blindly self-enema, in order to avoid adverse effects.