Understanding Colonoscopy by Dr. Varun Khandagale
What is a colonoscopy?
A colonoscopy is done to examine the inside of the large intestine for abnormalities. In this procedure, the doctor inserts a thin flexible tube, as thick as your finger, into your anus and slowly advances it into the rectum and colon. This instrument, called a colonoscope, has its own lens and light source and it allows your doctor to view images on a video monitor. A colonoscopy is commonly used to evaluate gastrointestinal symptoms, such as bleeding, abdominal pain, or changes in bowel habits (how often you poop, how easily you poop, and the color and consistency of your poop).
Why is a colonoscopy performed?
A colonoscopy can be performed as a screening for colorectal cancer and other problems. The screening can help your doctor:
- Look for signs of cancer and other problems
- Explore the cause of unexplained changes in bowel habits
- Evaluate symptoms of abdominal pain or bleeding
- Find a reason for unexplained weight loss, chronic constipation, or diarrhea
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