The prognosis for lymphocytic<unk>  and collagenous<unk>  is good, and both conditions are considered to be benign. The majority of people afflicted with the conditions recover from their diarrhea, and their histological abnormalities resolve, although relapses commonly occur if maintenance treatment is not continued.
Microscopic colitis
Bile acid malabsorption
Collagenous colitis
Coeliac disease
Lymphocytic colitis
Crohn's disease
Cytomegalovirus colitis
Lactose intolerance