Feeling bloated and wanting to have a bowel movement but not having a bowel movement may be related to constipation, intestinal obstruction, gastrointestinal dysfunction and other reasons. 1. Constipation: mainly manifested as a decrease in the number of bowel movements, defecation difficulties, etc., which may be accompanied by symptoms of abdominal distension, and the phenomenon of feeling bloated and wanting to have a bowel movement but not having a bowel movement may occur. 2. Intestinal obstruction: intestinal obstruction caused by sigmoid colon torsion, colorectal tumor, etc., the intestinal contents are not discharged smoothly or can not be discharged, which can lead to abdominal distension, want to have a bowel movement, but no bowel movement. 3. Gastrointestinal dysfunction: it can be manifested as bloating, abdominal pain, constipation, sense of embarrassment in defecation and so on. It is recommended that people who feel bloated and want to have a bowel movement but do not have a bowel movement go to a regular hospital in time to clarify the cause of the disease and have standardized treatment under the guidance of a doctor to avoid delaying the condition.