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Mount Olive, NC
A 22-year-old male asked:

can anybody please explain to me why colon cancer so rare at 22? even if i seen bright blood on stool? more than one doctor please chime in and help me understand what percentage of cases of colon cancer are there by age group

2 doctor answers8 doctors weighed in
Dr. William A Biermann
Medical Oncology 46 years experience
Here is the data: From 2005-2009, the median age at diagnosis for cancer of the colon and rectum was 69 years of age3. Approximately 0.1% were diagnosed under age 20; 1.1% between 20 and 34; 4.0% between 35 and 44; 13.4% between 45 and 54; 20.4% between 55 and 64; 24.0% between 65 and 74; 25.0% between 75 and 84; and 12.0% 85+ years of age. See your doctor cancer is not the only cause of rectal bleeding.
Dr. SG Erman
Dr. SG Erman commented
Family Medicine 35 years experience
there are many non-cancerous causes of bright red blood from the rectum. Most are easily diagnosed in the office, some require a colonoscopy.
Aug 18, 2012
Dr. Allen Kamrava
Colon and Rectal Surgery 15 years experience
See a doc: Tyree - you have numerous questions regarding this, which is fine, but it does indicate that you are genuinely concerned about this. Yes - a 22 year old can have colon cancer, but it is much less frequent. When somebody at age 22 has colon ca, they usually have a family history that would clue in to it. Given your level of concern, visit a GI doc to discuss further in person.

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Last updated Mar 22, 2020

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