No one knows exactly what causes diverticula, but eating a diet that’s low in fiber is thought to contribute to the formation of the sacs. Eating fiber with proper hydration helps soften your stool. Soft stools are easier to pass.
A low-fiber diet can cause problems such as constipation. With constipation, more pressure is needed to pass your stool. Doctors believe that increased colon pressure can lead to the development of diverticula. Diverticulitis occurs when fecal matter lodges in the diverticula and causes infections.