Diverticular disease is a digestive condition where small bulges or sacks (diverticula) develop and push outwards through weak spots in the lining of the colon. When there are no symptoms, this is called Diverticulosis.
If the symptoms are mild, this is called Diverticular disease; symptoms of diverticular disease include tummy pain (particularly on the lower left side) that tends to get worse after eating, constipation, diarrhoea and occasionally blood in the stools.
If the symptoms are more severe (the diverticula become inflamed or infected), this is called Diverticulitis. Symptoms of Diverticulitis include constant or severe tummy pain, constipation, diarrhoea, a high temperature and mucous blood or bleeding from the bottom.1