Intestinal celiac disease is not necessarily ulcerative colitis. Clinical inflammatory infection, mechanical stimulation and other factors can lead to intestinal celiac disease, and ulcerative colitis is only one of the chronic intestinal inflammation, mainly due to intestinal inflammation leads to intestinal mucosal necrosis, intestinal mucosal barrier protection function is reduced, which causes recurrent intestinal ulcers, the general clinical manifestations of diarrhea, abdominal pain, mucus blood stools, etc., you can combine with the colonoscopy, fecal routines, barium enema X-ray and other tests to confirm the diagnosis. The diagnosis can be confirmed with colonoscopy, fecal routine, X-ray barium enema and other examinations. Ulcerative colitis is usually treated by salicylic acid, glucocorticoids, immunosuppressants and other drugs such as mesalazine, budesonide, azathioprine, etc. Patients in serious condition or in line with the indications for surgery can choose surgical treatment, which is prone to recurrence and requires repeated lifelong treatment. Patients should consult the doctor in time, make a clear diagnosis, and follow the doctor’s instructions for treatment.