Diverticula are small, bulging pouches that can form in the lining of the digestive system, particularly in the colon. These pouches develop when weak spots in the intestinal wall give way under pressure, often due to factors like a low-fiber diet or aging. When these pouches become inflamed or infected, the condition is known as diverticulitis. Symptoms may include abdominal pain, fever, and changes in bowel habits. While many people with diverticula experience no symptoms, it's important to maintain a healthy diet to reduce the risk of complications.