Possible causes and new risk factors

There is a growing cohort of younger Canadians being diagnosed with colorectal cancer. Now, the Canadian Cancer Society is calling for the screening age to be lowered from 50 to 45.

Dr. Shady Ashamalla is a surgical oncologist at Toronto’s Sunnybrook Hospital, specializing in colorectal cancer and Miranda Fidler-Benaoudia, an epidemiologist at the University of Calgary, on the effects of cancer on young people.