At Mayo Clinic, diagnosis of diverticulitis begins with a thorough review of your medical history. Your doctor can confirm the level of tenderness and swelling in your abdomen with a physical exam.
Diagnostic procedures may include:
- Computed tomography (CT). CT scans allow the doctor to visualize inflamed/infected pouches and rule out other conditions that mimic diverticulitis, such as irritable bowel syndrome.
- Blood test. A blood sample will be tested for elevated white blood cells, a sign of infection.
Read more about diagnosis of diverticulitis on MayoClinic.com.