What are the common tests used to diagnose diverticulitis?

Common tests used to diagnose diverticulitis include:

1. CT scan: A computed tomography (CT) scan provides detailed images of the abdominal area, helping to identify inflamed diverticula, abscesses, or complications.

2. Ultrasound: An abdominal ultrasound may be performed to visualize the presence of inflamed diverticula and assess the surrounding tissues.

3. Blood tests: Complete blood count (CBC) and C-reactive protein (CRP) tests help evaluate inflammation levels and rule out other conditions.

4. Sigmoidoscopy: A flexible sigmoidoscopy allows visual examination of the lower part of the colon to check for signs of inflammation or diverticula.

5. Colonoscopy: While not always necessary for diagnosis, a colonoscopy may be recommended to assess the entire colon for diverticula, rule out other conditions, or screen for colorectal cancer.