Diverticulosis is a colon disease that is more common in older people. Although the exact cause is still unknown, it may be related to a low-fibre diet. In this condition, there are one or more small pouches in the wall of the affected segment of colon. Faecal material may get trapped in these pouches, which may lead to bacterial overgrowth and causes inflammation. If the thin lining of the pouch breaks, there may be abscess formation and peritonitis (inflammation of lining of abdomen). Chronic inflammation of the colon can lead to stricture formation, causing bowel obstruction. The symptoms of diverticulosis include abdominal pain (the painful site depends on which segment of the colon is affected), nausea, vomiting, fever and constipation. Doctors usually diagnose the disease by physical examination, bowel imaging and CT scan. Regarding treatment options, patients are advised to take more fruits and vegetables, and they may need antibiotics for the inflammation caused by bacteria. If there is abscess, perforation or peritonitis, surgical removal of the diseased colon segment may be needed. Diverticulosis may disguise as other common bowel conditions. It is important that you visit your doctor for any such symptoms.