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Watch Dr. Rishi Sharma's video here.
March is Colon Cancer Awareness Month, a perfect time to highlight one of the most powerful tools in cancer prevention: screening.
Colorectal cancer is the third most diagnosed cancer in the U.S. and the second leading cause of cancer-related deaths. But with early detection, many cases can be treated—or even prevented—before they become life-threatening.
Why Colon Cancer Screening Matters
Most colon cancers begin as polyps, small growths in the colon or rectum that can become cancerous over time. The good news? Polyps can be removed before they turn into cancer—if they're found early.
Even if you feel healthy or have no family history, screening is still important. In fact, most people diagnosed with colon cancer do not have a known family history.
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Screening Options: What’s the Best Choice for You?
There are several types of colon cancer screenings. Each has pros and cons:
1. Colonoscopy
- Most effective at detecting and removing polyps
- Done every 10 years (if normal results)
- Performed under sedation (pain-free)
- Polyps can be removed during the procedure
- Requires full bowel prep and time off work
Best for: Gold standard for detection and prevention
2. Stool Tests (e.g., FIT, Cologuard)
- Convenient, at-home collection
- Non-invasive
- May miss precancerous polyps
- Cologuard has a higher false-positive rate
(According to Mayo Clinic, 1 in 13 positive results are false)
Best for: Those unable or unwilling to do a colonoscopy, but still require follow-up if results are abnormal
3. CT Colonography (Virtual Colonoscopy)
- Non-invasive scan
- Detects some large polyps and cancers
- Still requires bowel prep
- If polyps are found, a regular colonoscopy is needed
Best for: Those at average risk seeking a non-invasive option
When Should You Get Screened?
- Age 45–50+: All average-risk adults should start screening
- Earlier than 45: If you have a family history, personal history of polyps, or symptoms like:
- Blood in the stool
- Unexplained weight loss
- Persistent abdominal pain or changes in bowel habits
Talk to your doctor about the best time to begin screening based on your individual risk.
Is It Covered by Insurance?
Most preventive colon cancer screenings are fully covered under the Affordable Care Act. If you're uninsured, organizations like the Colorectal Cancer Alliance may offer financial assistance or free screening programs.
Expert Colon Cancer Screening at BASS Medical Group
The Gastroenterology Team at BASS Medical Group in Walnut Creek offers advanced, compassionate care and uses the latest screening technology.
Whether you need your first screening or are due for a follow-up, we’re here to guide you through the process—from preparation to results and prevention strategies.
Take Action Today
Don’t wait until symptoms appear. Screening saves lives.
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