A blood test for colon cancer is on the horizon. Here’s what we know … [Video]

(WXYZ) — The first blood test for colon cancer is on the horizon.  A study published Wednesday showed it detected the disease in more than 8 in 10 people. 

I do diagnose and care for patients with colon cancer. Unfortunately, it’s the second-highest cause of cancer deaths here in our country. A big part of the reason lies in people avoiding colon cancer screenings altogether. So I think an easy blood test would be a great option to offer some people. However, it would not replace a colonoscopy. And here’s why. During a colonoscopy, gastroenterologists like myself use a small flexible tube with a tiny camera to examine the entire colon. Not only can I see lesions or growths called polyps, I can also remove them as well. Removing them is important because little polyps can become cancerous over time. So, a colonoscopy is very accurate and preventative.

Now, how …