Right-sided diverticula are micro-hernias of the colonic mucosa and submucosa through the colonic muscular layer where blood vessels penetrate it. Left-sided diverticula are pseudodiverticula, since the herniation is not through all the layers of the colon.<unk>  is postulated to develop because of changes inside the colon, including high pressures because of abnormally vigorous contractions.
Diverticulitis
Irritable bowel syndrome
Ischemic colitis
Segmental colitis associated with diverticulosis
Appendicitis
Diversion colitis
Proctocolitis
Gastroenterocolitis