If you can’t vent to the anus, you have to go to the hospital for detailed examination. Because difficult or impossible to vent the anus is one of the signs of intestinal obstruction, of course, to be sure, we have to carry out abdominal standing plain film to check whether it is intestinal obstruction, intestinal obstruction is due to obstruction of the passage of intestinal contents in the intestinal tract. If there are symptoms such as abdominal pain, vomiting and bloating in addition to the inability to ventilate, there is a high probability that the condition is present and that the intestinal obstruction requires surgery. It is also possible that inflammatory conditions such as inflammatory changes in the rectum can cause the bowel to weaken and peristalsis to weaken, resulting in the inability to pass gas. There is also the worst cause of malignant tumor of the rectum and this is one of the causes. It can also be due to hemorrhoids, which can also cause the exhaustion to be released. There are also anal papillae and polyps in the anal canal, which can also lead to the problem.