Tests and physical examinations are needed to confirm the diagnosis. It may include:
Blood and Stool Tests
Simple blood tests can show if you have inflammation somewhere in your body and whether you are anaemic. Your stools may also be tested for signs of bleeding or inflammation and to check if your diarrhea is due to an Infection. If inflammation is confirmed, examination such as endoscopy, x-ray or scanning is done.
In an endoscopy, a doctor or specialist endoscopist uses an endoscope (a long, thin, flexible tube with a camera at the end) to examine your digestive tract. There are several types of endoscopy, each with a different name depending on the part of the intestine being examined. The type of endoscope used will also vary.
Colonoscopy or Sigmoidoscopy
These types of endoscopies are often used to aid in the diagnosis and monitoring of ulcerative colitis. In these tests, a short endoscope called a SIGMOIDOSCOP or a longer and more flexible colonoscope is inserted through the anus to examine the rectum and colon.
MRI and CT Scans
Other tests that can sometimes be used to help diagnose colitis include MRI (Magnetic Resonance Imaging) and CT (Computed Tomography) scans. MRI scans use magnets and radio waves and CT scans use a special type of x-ray to create a ‘3D’ image of the body. Some centers also use ultrasound to find areas of inflammation.