What changed in colorectal cancer screening guidelines

The American Cancer Society has updated its colorectal cancer screening guidelines to include a blood test for the first time. Previously, screening options focused on colonoscopy, stool-based tests, and imaging, but the new recommendation adds a blood-based test as an alternative for people who might not pursue other screening methods. The update reflects growing recognition that more accessible screening options can help reach individuals who currently go unscreened.

Why a blood test matters now

Colorectal cancer remains a leading cause of cancer-related deaths in the United States, and screening rates still lag behind targets. The addition of a blood test is designed to lower barriers to screening by offering a less invasive option than colonoscopy or stool-based tests. Public health experts emphasize that the goal is not to replace colonoscopy, which remains the gold standard for detection, but to provide another tool that may encourage more people to get screened at recommended intervals.

How the blood test fits alongside existing options

Colonoscopy continues to be the most comprehensive screening method, allowing doctors to both detect and remove precancerous polyps during the procedure. Stool-based tests, such as FIT (fecal immunochemical test) and Cologuard, are also widely used and can be done at home. The new blood test offers a different approach by detecting cancer-related signals in the bloodstream, which may appeal to people who are reluctant to undergo colonoscopy or handle stool samples. Doctors can help individuals choose the best screening method based on personal preferences, risk factors, and medical history.

What to consider if you’re due for screening

If you’re within the recommended screening age range or have risk factors for colorectal cancer, now is a good time to talk with your healthcare provider about which screening option is right for you. The blood test is not a replacement for colonoscopy, but it provides another pathway to early detection. Screening remains the most effective way to find colorectal cancer early, when it’s most treatable. If you’ve been putting off screening due to discomfort, time constraints, or other concerns, ask your doctor whether the new blood test could be a fit for you.

Next steps for patients and providers

Healthcare systems and insurers are expected to incorporate the updated guidelines into their screening protocols over the coming months. Patients should check with their insurance providers to confirm coverage for the new blood test, as policies may vary. Providers will likely discuss the full range of screening options with patients, including the benefits and limitations of each method. The goal is to increase screening participation and reduce colorectal cancer deaths through earlier detection and prevention.

Bottom line

The inclusion of a blood test in colorectal cancer screening guidelines marks a meaningful shift toward more accessible screening options. While colonoscopy remains the gold standard, the new recommendation offers a less invasive alternative that could help more people get screened. If you’re due for screening, talk to your doctor about whether the blood test—or another method—is right for you. Early detection saves lives, and the expanded options make it easier than ever to take that first step.

Key takeaways

  • The American Cancer Society now recommends a blood test as an option for colorectal cancer screening for the first time.
  • The blood test is not meant to replace colonoscopy, which remains the gold standard for detection.
  • The goal is to reach people who might otherwise skip screening altogether.
  • Talk to your healthcare provider to determine which screening method is best for you based on your risk factors and preferences.

Screening options at a glance

  • Colonoscopy: Gold standard; detects and removes polyps during the procedure.
  • Stool-based tests (FIT, Cologuard): Done at home; detects hidden blood or DNA markers.
  • Blood test: New option; detects cancer-related signals in the bloodstream.

Who should get screened

Screening is recommended for adults at average risk starting at age 45, though some guidelines suggest earlier screening for those with risk factors such as a family history of colorectal cancer or personal history of polyps. If you’re unsure about your risk level or when to start screening, consult your healthcare provider to make an informed decision.

Why early detection matters

Colorectal cancer is highly treatable when detected early. Screening can find precancerous polyps before they turn cancerous, or detect cancer at an early stage when treatment is most effective. The addition of a blood test to the screening lineup expands the tools available to catch the disease sooner, potentially saving lives through earlier intervention.

What to ask your doctor

  • Which screening method is best for me based on my risk factors and preferences?
  • Is the blood test covered by my insurance?
  • How often should I be screened, and which test should I repeat?
  • What are the risks and benefits of each screening option?

Looking ahead

As screening guidelines evolve, more options may become available, and research continues to improve early detection methods. The inclusion of a blood test reflects a broader trend toward personalized and accessible cancer screening. Staying informed and discussing your options with your healthcare provider can help you make the best choice for your health.

Resources and support

For more information on colorectal cancer screening, visit the American Cancer Society’s website or speak with your healthcare provider. Organizations like the Colorectal Cancer Alliance and the National Colorectal Cancer Roundtable also offer resources and support for patients and families affected by colorectal cancer.