Colonoscopy vs. Sigmoidoscopy: What’s the Difference? If your doctor wants to check the health of your colon — whether as part of a routine screening or to investigate a concern — they may recommend a ...

A study finds that use of virtual colonoscopy, a non-invasive way of scanning the colon for potentially cancerous growths, is on the rise.more That’s a bit of a surprise, given that not all medical ...