Symptoms of diverticulitis include abdominal pain, nausea, change in bowel habit, abdominal distension, bloody stools, and systemic symptoms. 1. Abdominal pain: it is the most common manifestation of diverticulitis and is often cramp-like pain. 2. Nausea: manifested as nausea, vomiting, loss of appetite. 3. Change in bowel habit: manifested as constipation or diarrhea. 4. Bloating: excessive accumulation of gas in the gastrointestinal tract, causing hiccups and increased exhaust. 5. Bloody stools: In severe cases of diverticulitis, bloody stools may occur, manifesting as red or reddish-brown stools with blood or blood clots, or black tarry stools. 6. Systemic symptoms: chills and fever. If the above symptoms occur, it is recommended to seek prompt medical treatment to avoid complications such as abscesses and fistulas.