Ulcerative colitis is a chronic inflammatory disease in which a part or the whole of the mucosa of the large bowel becomes diffusely inflamed and may ulcerate, as a result of which the patient suffers from diarrhoea which may be bloody.
The cause of ulcerative colitis is unknown but genetic, immunological, dietary, and psychological factors have all been implicated.
The highest incidence of this disease is in adulthood, although it may occur in childhood
According to the Montreal classification, the extent of ulcerative colitis can be classified as:
ulcerative colitis is the most common type of inflammatory bowel disease
Last edited 07/2019 and last reviewed 07/2020