There is no such thing as the highest life expectancy for ulcerative colitis, because ulcerative colitis is not a fatal disease, and the life expectancy of a normal person is generally the same, but the specifics are related to the patient’s health status and whether there are other underlying diseases. Ulcerative colitis is an inflammatory disease, the cause of which is still unclear, and the lesions are mainly confined to the mucous membrane and submucosa of the large intestine, and patients tend to suffer from abdominal distension, diarrhea, abdominal pain, and other symptoms, but they often do not affect the normal life expectancy. Some patients with ulcerative colitis may have poorer health conditions themselves, especially if they suffer from other underlying diseases, such as diabetes, hypertension, etc., which may have some impact on life expectancy, but there is no accurate data on this. It is recommended that patients with ulcerative colitis should go to the hospital in time and choose the appropriate treatment and medication under the guidance of the doctor.