The intestinal crunching and wanting to have a bowel movement after meals may be due to improper eating, ulcerative colitis, perianal abscess, rectal tumor, etc., and should be treated according to the cause. Adjust the diet of those who eat improperly. 1. Improper eating: eating too much cold and irritating food may cause intestinal distension after meals, which should be adjusted in diet and avoided, and generally do not need special treatment. 2. Ulcerative colitis: ulcerative colitis is an autoimmune-related inflammatory bowel disease, due to inflammatory stimulation, there can be a sense of urgency and heaviness, intestinal distension after eating and wanting to have a bowel movement, should be given mesalazine, sulfasalazine and other aminosalicylic acid treatment, and in severe cases, the application of glucocorticosteroids, such as prednisone. 3. Perianal abscess: Perianal abscess is aggravated, the inflammation spreads to the perianal tube, there can be a feeling of stomach swelling and wanting to have a bowel movement, ceftriaxone and other antibiotics should be given to fight infection, and if necessary, surgical incision and drainage. 4. Rectal tumor:Rectal tumor can have rectal irritation symptoms when it irritates the rectum, and anal distension and always want to have bowel movement, it should be treated with surgery, chemotherapy and radiotherapy. You should go to the hospital to find out the cause of intestinal swelling and want to have a bowel movement after meals, and then treat according to the cause of the disease under the guidance of the doctor.