Diverticulosis is a condition where small pouches, called diverticula, form in the walls of the colon. These pouches develop due to increased pressure in the intestines, often linked to a low-fiber diet. Many people with diverticulosis experience no symptoms and may not even know they have it. In some cases, diverticulosis can lead to complications, such as diverticulitis, which occurs when the pouches become inflamed or infected. Symptoms of diverticulitis may include abdominal pain, fever, and changes in bowel habits. Maintaining a high-fiber diet can help prevent the development of diverticulosis and its complications.