In-depth

Symptoms

Abdominal pain

Find out what causes different types of abdominal pain.

Tests and diagnosis

Colonoscopy

Has your doctor recommended a colonoscopy? Here's what you need to know about preparation and the exam itself.

CT scan

A CT scan is an imaging test that uses X-rays to produce detailed images of the inside of your body.

Ultrasound

Ultrasound imaging uses high-frequency sound waves to create images of structures in your body.

Oct. 10, 2012