What is diverticulitis?
Diverticular disease is a pair of conditions that affect the lower intestine. Diverticulosis refers to the formation of small pockets, called diverticula, along the inside lining of the large intestine. They’re most common in the lower part of the large intestine. These small pockets can be pea-sized or larger.
Diverticula are formed by pressure on the walls of the large intestine, especially in places where the intestinal wall is weakened. Pressure from excess gas, too much solid waste, and liquid in the intestine can press on the weakened spots and cause the formation of diverticula. Excessive straining during bowel movements can also lead to diverticula.