Left abdominal pain with a feeling of stool but can not discharge may be related to constipation, intestinal obstruction and other reasons. 1. Constipation: If the feces in the intestine is not discharged in time, and stays in the intestine for a long time, it can lead to water reabsorption of feces by the intestine, and there can be the phenomenon of unsmooth discharge due to the dryness of feces. 2. Intestinal obstruction: due to hernia, intestinal adhesion and other causes of intestinal obstruction, the accumulation of intestinal contents in the intestinal tract appears left abdominal distension and pain, which can lead to the phenomenon of not being able to pass stool even though there is a feeling of stool. The left abdominal pain with a feeling of bowel movement but cannot pass stool may also be caused by colon cancer. It is recommended to go to the regular hospital for consultation to clarify the cause of the left abdominal pain, and standardize the treatment under the doctor’s guidance.