Colitis ulcers are considered to be ulcerative colitis, which is very difficult to cure. Ulcerative colitis is a chronic inflammatory disease of the intestines, which may be related to decreased intestinal immunity, heredity, high-fat diet, and medications. There may be symptoms such as abdominal pain, diarrhea, constipation, mucus-pus-blood stools, and even complications such as intestinal obstruction and intestinal cancer. Ulcerative colitis can be treated with anti-inflammatory drugs such as mesalazine and olsalazine; drugs such as prednisolone, budesonide and other hormones to inhibit the overreaction of the immune system; and immunomodulators such as azathioprine. With the above treatments, most of the symptoms can be relieved, but it is very difficult to cure completely. The above medications may cause side effects such as allergic immunity, liver and kidney damage, so it is recommended to take the medication under the guidance of a doctor, and it is not recommended to take it on your own.