The cause of ulcerative colitis is not clear and there is no simple self-cure. Patients should seek early medical examination and symptomatic treatment. Ulcerative colitis may be related to immune factors, genetics, intestinal flora, environmental factors, and psycho-psychological factors, and it is not yet possible to confirm the exact cause. The disease can lead to symptoms such as abdominal pain, diarrhea, fever, and anemia. Ulcerative colitis is not self-healing and there is no such thing as a simple self-healing method. Failure to intervene in a timely manner may lead to complications such as toxic megacolon, cancer and bowel perforation. Once diagnosed with this disease, it is recommended that patients should seek prompt medical attention to confirm the diagnosis of the condition and undergo treatment under the guidance of a doctor.