The feeling of something blocking in the left lower abdomen may be related to constipation, intestinal occupation, intestinal obstruction and other reasons. 1. Constipation: the stool is stored in the colon for a long time, and the water is absorbed, which can lead to dry stool, and there may be a feeling of something blocking in the left lower abdomen. 2. Bowel occupation: such as rectal polyps, colon cancer, etc., which can cause narrowing of the intestinal lumen and the feeling of something blocking in the left lower abdomen. 3. Intestinal obstruction: patients with intestinal obstruction can lead to food residue cannot be discharged, and the phenomenon of feeling something blocking in the lower left abdomen can occur. It is recommended that people who feel something blocked in the lower left abdomen go to the hospital in time to clarify the cause of the disease and carry out standardized treatment under the guidance of the doctor, so as not to delay the condition.