Polyps vary in shape, size and location. Most polyps are benign and rarely produce symptoms. It often begins in adolescence or young adulthood and is more frequent in women. At least one in six New Zealanders periodically have an attack of irritable bowel syndrome, although many never go to the doctor so the real number is unrecognised. Flare ups can come from stress, excessive intake of tea, coffee or alcohol, or excessive fatigue.
Treatment is often as simple as a change in diet.
Diverticular Disease is the development of multiple small pouches that project outward from the wall of the colon. This is very common in western countries, especially in people over 30 or 40. It is also more common in countries where the diet is generally high in animal protein and low in vegetable or cereal fibre. It does not produce an increased risk of cancer. Dietary management can often help.