Diverticulitis is a serious condition that occurs when small, bulging pouches (diverticula) in the digestive tract become inflamed or infected. Symptoms of diverticulitis can include abdominal pain and tenderness, nausea, vomiting, fever, and constipation. In severe cases, complications such as abscesses, fistulas, and perforations can occur, which can be life threatening. Treatment for diverticulitis can include antibiotics, pain relief medications, and in severe cases, surgery. Therefore, it is clear that diverticulitis is a more serious condition than diverticulosis, which is a milder condition where the pouches form, but do not become inflamed.