For a long time, colorectal cancer was viewed as a disease primarily affecting older adults. However, in recent years, this assumption has been challenged. We are seeing more young adults diagnosed with colon and rectal cancers—often after their symptoms were initially dismissed.
The numbers are hard to ignore. When we compare the incidence of colorectal cancer in the 1990s to today, we’ve seen about a 50% rise in colon cancer cases across all ages under 50. Experts project that by 2030, there will be an alarming 150% rise in the 20 to 30 age group.
While researchers are still working to understand exactly why rates are increasing, this trend should change how we evaluate symptoms. Too often, young people aren’t taken seriously when they voice concerns. Warning signs like rectal bleeding are frequently dismissed as hemorrhoids without proper investigation.
Because younger adults typically don’t meet routine screening guidelines, symptoms can be the only clue that something is wrong. Historically, we’ve described colon cancer as “silent cancer,” but young adults may still experience signs that deserve attention.
The symptoms can be subtle, but the classic ones to look out for are new bleeding and changes in bowel habits. A good rule of thumb regarding stool caliber is to think of the size of a banana. If your stool is suddenly smaller than a banana, it’s time to talk to a doctor.
We are seeing these changes globally, particularly in countries with modern diets. Several factors likely drive this trend, including diets high in fat and red meat, reduced physical activity, microbiome changes, stress, and environmental exposures.
While family history matters, it doesn’t explain most early cases. Only about one in five young patients with colorectal cancer have a contributing family history. However, for those with a first-degree relative diagnosed young, genetic testing and earlier screening may be appropriate.
Prevention starts early. It’s not too early at age 12 to start eating high-fiber foods like bran cereal daily. I recommend a fiber-forward diet rich in grains, fruits, and vegetables, while reducing red meat and high-fat foods. Making exercise a fun family activity is another great way to build healthy habits for the next generation.
Knowing when to seek medical evaluation is crucial. If you experience more than a week or two of new bleeding, please get checked. You must be your own advocate. Don’t hesitate to say, “I am worried about cancer. I want you to check me out.”
Current guidelines recommend preventive screening starting at age 45 for average-risk adults. However, awareness remains our most powerful tool. If you have concerns, don’t wait.
To schedule an evaluation, please call 928-684-1833 to book an appointment with your provider today.
