Constipation after intestinal resection surgery, in addition to the normal postoperative reaction, most consider drugs, intestinal obstruction and other factors lead to. It is recommended that patients who suffer from prolonged constipation should consult a doctor in time to clarify the cause of the problem. 1. Normal reaction: patients usually need to take oral intestinal cleansing drugs before bowel resection to empty the feces in the intestinal lumen; on the other hand, postoperative patients need liquid and semi-liquid diet, and no or a small amount of stools before regular eating are all normal reactions. 2. Drugs: patients affected by anesthesia, intestinal peristalsis is inhibited can also lead to the absence of stool. Generally, after the anesthesia drug is completely metabolized, the body can gradually resume defecation. 3. Intestinal obstruction: Bowel resection is usually an abdominal surgery, and the intestines may form adhesions after the surgery. Generally, it is recommended that the patient should go down to the ground early after the operation, and if necessary, the operation should be carried out to separate the adhesion and release the obstruction. After bowel resection surgery, it is recommended that patients follow the doctor’s instructions to actively cooperate with the treatment, if there is any discomfort, timely communication with the attending physician, as soon as possible to give treatment to avoid aggravation of the condition.