Colorectal Cancer Risk Calculator
Evaluate colorectal cancer risk based on age, family history, and screening status.
Colorectal Cancer Risk Assessment
Evaluate your colorectal cancer risk based on age and health factors.
Frequently Asked Questions
How common is colorectal cancer?
Colorectal cancer is one of the most common cancers worldwide, accounting for about 10% of all cancer diagnoses. Incidence varies by region but is increasing in younger adults. Early detection significantly improves survival rates.
What age should screening start?
Average-risk adults should begin screening at age 45-50. Some organizations recommend starting at 40 for high-risk individuals. Those with family history, polyps, or inflammatory bowel disease may need earlier or more frequent screening.
What are colorectal cancer screening methods?
Common methods include: colonoscopy (gold standard, every 10 years), flexible sigmoidoscopy (every 5 years), high-sensitivity FOBT (annual), FIT test (annual), or CT colonography (virtual colonoscopy, every 5 years). Discuss with your doctor which is appropriate.
What symptoms should I watch for?
Warning signs include: persistent changes in bowel habits, blood in stool or rectal bleeding, abdominal pain or cramping, unexplained weight loss, fatigue, or feeling incomplete after bowel movements. Don't ignore these symptoms—see a doctor.
Can polyps be removed during colonoscopy?
Yes! Most polyps (benign growths) are removed during colonoscopy. This prevents them from potentially becoming cancerous. This is why colonoscopy is both a screening and preventive procedure. Regular screening catches polyps early.
What increases colorectal cancer risk?
Risk factors include: age 45+, family history, personal history of polyps/IBD, smoking, alcohol use, obesity, physical inactivity, poor diet, and race (African Americans have higher risk). Many risks are modifiable through lifestyle changes.