• X-ray: If you have severe symptoms, your doctor may use a standard X-ray of your abdominal area to rule out serious complications, such as a perforated colon.
• CT scan: A CT scan of your abdomen or pelvis may be performed if your doctor suspects a complication from ulcerative colitis. A CT scan may also reveal how much of the colon is inflamed.
• Computerized tomography (CT) enterography and magnetic resonance (MR) enterography: Your doctor may recommend one of these noninvasive tests if he or she wants to exclude any inflammation in the small intestine. These tests are more sensitive for finding inflammation in the bowel than are conventional imaging tests. MR enterography is a radiation-free alternative.
Ulcerative colitis treatment usually involves either drug therapy or surgery.
Several categories of drugs may be effective in treating ulcerative colitis. The type you take will depend on the severity of your condition. The drugs that work well for some people may not work for others, so it may take time to find a medication that helps you.
In addition, because some drugs have serious side effects, you'll need to weigh the benefits and risks of any treatment.
Courtesy: Mayo Clinic