Ulcerative colitis is a major disease, which is chronic, recurrent for life and has a high chance of becoming cancerous. Ulcerative colitis is a chronic non-specific intestinal inflammatory disease, the most common site is the rectum and colon, will be repeated diarrhea, mucus pus and blood stools, and accompanied by abdominal pain and abdominal pain and acute and severe symptoms, can not be completely cured, long-term recurrent episodes will cause anemia, resulting in fatigue, immune system weakness and so on. Ulcerative colitis is also known as a major disease because of its high cancer rate. This disease is closely related to the development of colon cancer, and once it develops into colon cancer, it will threaten the patient’s life. If you are diagnosed with ulcerative colitis, you should pay attention to it, strictly follow the doctor’s instructions for treatment, and do a good job of dietary regulation. The longer this disease occurs, the greater the risk of cancer, and you should be screened regularly.