Colon cancer affects thousands of men and women each year, yet so many are still not getting screened.
It's the third most common cancer in the U.S. Often, symptoms are not present until an advanced state, which is why it's so important to have regular screenings.
Marci Cook was just 37 when she was diagnosed with colon cancer. She first started to notice a difference in the way her stomach felt, and then knew something was really wrong while on vacation.
Cook had a colonoscopy and because of the test, doctors were able to find the cancer. She then started chemo and had surgery.
Each year, almost 130,000 people in the U.S. are diagnosed with colorectal cancer and up to 50,000 people will die from it.
The Susan Cohan Foundation has spent years bringing awareness to colon cancer. Their annual Susie's Cause Baltimore Health Festival is Sturday, March 19 at Mondawmin Mall from 12:30 - 4:30 p.m.
See video above for more on Marci's story.