There is a possibility that hemorrhoids, constipation and irritable bowel syndrome may be the cause.
1. Hemorrhoids: patients do not need to discharge stool, but hemorrhoids stimulate the anal sphincter muscle contraction, so that patients have the intention to poop, but can not pass stool.
2. Constipation: constipation leads to stool retention in the colorectum, on the one hand, the stool will continue to stimulate the colorectal contraction, prompting peristalsis, so that the patient has the urge to poop; on the other hand, the stool for a long time to stay in the intestinal tract, the water is absorbed by the colon, the stool becomes dry, can not be discharged or even not discharged. The two factors interact with each other, resulting in a situation where the patient has the urge to pass stool but cannot do so.
3. Irritable Bowel Syndrome (IBS): diarrhea and constipation may alternate repeatedly, constantly stimulating the intestines and perianal area, resulting in the situation of having the urge to pass stool but not being able to do so.
It is not possible to accurately determine the cause solely on the basis of the urge to have a bowel movement, but it is necessary to combine with the characteristics of the medical history, colonoscopy and other test results to make an accurate judgment, and it is recommended to clarify the cause of the disease under the guidance of a doctor.