That distinction matters, especially when discussing a child.
Chapter 2: Why Colorectal Cancer in Children Is Different
Colorectal cancer is far more common in adults than in children. In adults, researchers have identified numerous factors associated with increased risk, including age, family history, certain inherited genetic conditions, inflammatory bowel disease, smoking, alcohol consumption, obesity, physical inactivity, and dietary patterns.
Children, however, generally do not have the same decades-long exposure to these risk factors.
When colorectal cancer develops at a young age, physicians may therefore investigate whether there is an underlying genetic or hereditary explanation.
Some inherited conditions can substantially increase colorectal cancer risk. Examples include familial adenomatous polyposis (FAP) and Lynch syndrome. Certain rare genetic conditions can also predispose children to tumors of the gastrointestinal tract.
Inflammatory bowel diseases such as Crohn's disease and ulcerative colitis may also increase colorectal cancer risk over time, particularly when inflammation has been present for many years.
This is why a child's diagnosis should trigger a careful medical evaluation rather than an attempt to identify a single “bad food.”
Parents should also remember that social-media posts frequently remove important medical context. A dramatic photograph and a headline can make a complicated medical case appear much simpler than it really is.