Colorectal Cancer Risk Calculator

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High Risk: Consult with a gastroenterologist about more frequent screening and prevention strategies.

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Moderate Risk: Follow standard screening guidelines (colonoscopy every 10 years starting at age 45-50).

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Low Risk: Continue healthy habits and discuss screening with your doctor.

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Colorectal Cancer Risk Calculator

Free Colorectal Cancer Risk Calculator

Colorectal cancer (CRC) is the third most common cancer globally, with over 1.9 million new cases diagnosed annually. Early detection through risk assessment and screening significantly improves survival rates. Our Free Colorectal Cancer Risk Calculator helps you evaluate your personal risk factors and guides you toward appropriate preventive measures.

What Is Colorectal Cancer?

Colorectal cancer develops in the colon or rectum, often originating from precancerous polyps called adenomatous polyps. Key terms to understand:

• Adenocarcinoma: Most common CRC type (95% of cases).
• Familial adenomatous polyposis (FAP): Genetic condition causing polyp growth.
• Lynch syndrome: Hereditary nonpolyposis colorectal cancer (HNPCC).
• Carcinoembryonic antigen (CEA): Biomarker used in CRC monitoring.

Why Use a Colorectal Cancer Risk Calculator?

This tool evaluates modifiable and non-modifiable risk factors using evidence-based parameters:

Key Risk Factors Analyzed

1. Demographics
   • Age (risk increases after 45)
   • Gender (men have higher incidence)
2. Genetic & Medical History
   • Family history of CRC (1st-degree relatives)
   • Personal history of polyps or inflammatory bowel disease (IBD)
3. Lifestyle Factors
   • BMI (obesity increases risk)
   • Smoking status
   • Alcohol consumption
   • Physical activity level
   • Red meat intake

How the Calculator Works

Our algorithm assigns weighted scores to each risk factor based on clinical guidelines:

Factor	Risk Weight
Family history (2+ relatives)	5x
Current smoker	3x
BMI > 30	2x

Result Interpretation

• Low Risk (<15): Green zone – Continue routine screenings.
• Moderate Risk (15-25): Yellow zone – Discuss preventive colonoscopy.
• High Risk (>25): Red zone – Urgent medical consultation recommended.

Prevention & Screening Strategies

• Screening Guidelines
  • Colonoscopy: Gold standard for polyp detection (recommended every 10 years after 45).
  • FIT Test: Annual fecal immunochemical test for blood detection.
• Lifestyle Modifications
  • Increase dietary fiber (25-30g/day)
  • Limit processed meats (WHO Class 1 carcinogen)
  • Exercise 150+ minutes weekly

FAQs