March marks Colorectal Cancer Awareness Month, a dedicated time to bring attention to one of the nation’s most preventable, yet devastating forms of cancer. Colorectal cancer is the second-leading cause of cancer deaths for men and women combined in the United States.
The message is even more profound this year, following the recent losses of two beloved Hollywood figures: James Van Der Beek, who died of colorectal cancer at the age of 48, and Catherine O'Hara, whose private battle with rectal cancer led to a pulmonary embolism at age 71.
Dr. Scott Flinn, regional medical director at Blue Shield of California Promise Health Plan, says losing two public figures to this disease in such close succession is a sobering reminder that colorectal cancer does not discriminate. “High-profile stories like these make the stakes painfully clear: this disease is both preventable and deadly, and early action can make a big difference.”
Why colorectal screening matters
Colorectal cancer can develop silently without symptoms for years, says Dr. Flinn, stressing the importance of routine screenings, which are recommended at age 45 onward for most patients at an average-risk level. He encourages patients to stay on top of screenings, and speak with their doctor about which screening method is best for them:
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Colonoscopy: Allows doctors to view the entire colon and remove polyps; typically needed every 10 years when results are normal.
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Stool-based tests: Noninvasive at-home option detects blood or DNA markers; repeated every 1-3 years.
“There’s no one ‘right’ approach to screening,” said Dr. Flinn. “What matters most is choosing a test you’ll follow through with and talking to your doctor about which is best for you. Colorectal cancer death is most preventable when caught early.”
Be vigilant about risks and symptoms
According to Dr. Flinn, age is the strongest predictor of colorectal cancer, which is why screenings typically begin at age 45. Family history can also increase risk, as do lifestyle factors such as:
- Diets high in red or processed meats
- Low intake of fruits and vegetables
- Smoking or alcohol use
- Obesity
Dr. Flinn also shares that symptoms can often appear late, but when they do, they should never be dismissed. Key warning signs include:
- Changes in bowel habits such as persistent diarrhea or constipation
- Blood in your stool
- Unexplained weight loss
- Abdominal pain or bloating
- Fatigue or weakness
Van Der Beek shared publicly that he initially dismissed a subtle change in his bowel habits, assuming it was diet related, and by the time he underwent a colonoscopy in 2023, he was diagnosed with Stage 3 colorectal cancer. He became an outspoken advocate for earlier screening.
“Mr. Van Der Beek’s experience, dismissing his first symptom until much later, is sadly common,” said Dr. Flinn. “Listen to your body and act early.”
Blue Shield resources
- Visit our member website to find doctors and services
- Learn more about coverage for preventive care and screenings
- Visit Wellvolution, Blue Shield’s digital lifestyle-medicine platform available at no extra cost to most members, for programs that support healthier eating and fitness habits, smoking cessation, mental well-being and more
- For more information on colorectal cancer, visit the Colorectal Cancer Alliance