The feeling of always wanting to defecate may be caused by the following reasons: 1, may be symptoms caused by colitis or proctitis, colon, rectal mucosa congestion, edema, increased local exudation, causing local foreign body sensation, generally due to inattention to dietary hygiene, infection with bacteria or viruses caused by colitis or proctitis, there will be rectal edema, causing urgency, always wanting to defecate, but can not defecate and will have symptoms such as abdominal pain, stool with pus and blood. 2. irritable bowel syndrome caused by intestinal dysfunction, which also has the feeling of always wanting to defecate. In these cases, you need to go to the gastroenterology department of the hospital in time to improve the relevant tests and actively treat the condition after a clear diagnosis. If there is no abdominal pain and stool with pus and blood and other symptoms appear, may be due to slow intestinal peristalsis caused by dry stool, constipation and other conditions, causing the feeling that there is always stool, it is recommended to improve the symptoms by adjusting the diet structure and changing the lifestyle.