Colon cancer is becoming more and more common amongst young people, with experts predicting that figures will double in under-40s by 2030.
Scientists in the US are expecting colorectal cancer as a whole to surge in case numbers, and they say that bad diets or fungus could be a few of the main causes.
The experts have warned people that they shouldn't ignore the signs, and have named some of the early red flag symptoms that a person could have the condition.