The location of intestinal obstruction is usually more common in the small intestine. Sometimes the colon and rectum may also be obstructed. Most of the small intestine obstruction is caused by intestinal adhesions and intestinal obstruction, most of the cases occur after surgery, because the patient has a history of abdominal surgery, it may lead to adhesions in the abdominal cavity, such as adhesions between the small intestine and small intestine, or adhesions between the small intestine and the abdominal wall, if the intestinal adhesions are more serious or even the formation of a band, it may lead to symptoms of intestinal obstruction. Of course, if the patient has tumor in the colon, it will also lead to intestinal obstruction, generally the left half of the colon is more common, such as descending colon, sigmoid colon, and even rectal tumor, which may lead to the patient having obstruction. In general, when there is obstruction in the colon, the patient mainly suffers from abdominal distension and less nausea and vomiting.