Look for Cancer Before Symptoms Give You a Reason To.
The Cancerguard test is a simple blood-based screening test that looks for signals associated with more than 50 types and subtypes of cancer. Add another layer to your routine cancer screening with one blood draw.
- 50+ cancer types and subtypes
- One simple blood draw
- Results in ~2 weeks
Book Cancerguard
Share your details and our care team will be in touch to talk through whether Cancerguard is right for you and arrange your blood draw.
Look Beyond Routine Cancer Screening.
Routine screening plays an essential role in detecting certain cancers early. But established screening programs only exist for specific cancers. Cancerguard looks more broadly.
Using a single blood sample, the test analyzes DNA and protein biomarkers for signals associated with more than 50 cancer types and subtypes. It does not replace mammograms, colonoscopies or other recommended screenings. It adds another layer to your proactive screening plan.
Built to Look for Some of the Hardest-to-Detect Cancers.
In test-development studies, Cancerguard showed its strongest performance across six of the deadliest cancers, many of which have no routine screening option today.
sensitivity across these six of the deadliest cancers
overall sensitivity across a broader range of cancers (excluding breast and prostate)
specificity, helping to minimize false positives and avoid unnecessary procedures
stage I or II cancers detected, when disease is often most treatable
Performance figures are from Cancerguard’s test-development studies, as reported by Exact Sciences (2025). The test does not detect all cancers, and false-positive and false-negative results may occur.
More Screening. Not Replacement Screening.
Cancerguard Adds to Routine Screening. It Does Not Replace It.
Routine Screening
- Screens for specific cancers
- Usually based on age and risk guidelines
- Mammograms, colonoscopies and other established tests
- Remains essential
Cancerguard
- Looks for signals associated with 50+ cancers
- Adds another layer of screening
- Single blood draw
- Complements existing screening
Routine screening still matters.Cancerguard is designed to work alongside the screening recommended for you based on your age, health history and individual risk.
One Blood Draw. A Broader Look.
Cancer types and subtypes associated with the signals Cancerguard looks for
Simple blood draw
Weeks to receive your results
Testing and result review through Stem Health
How Cancerguard Works.
A simple test, with guidance at every step.
Meet Your Physician.
Start with a conversation about your health history, current screening and individual risk factors.
Complete One Blood Draw.
A blood sample is collected and sent for Cancerguard analysis. No special preparation is required.
Your Sample Is Analyzed.
The test looks at DNA and protein biomarkers for patterns associated with cancer.
Review Your Results Together.
Your physician reviews the result with you, explains what it means and helps determine what should happen next.
A Result Should Come With a Next Step.
Cancer screening can raise important questions. At Stem, you do not receive a result and have to interpret it alone.
If No Cancer Signal Is Detected
A negative result means Cancerguard did not detect a cancer signal in your blood sample.
It does not completely rule out cancer. Your physician can help ensure your regular screening remains on track.
If a Cancer Signal Is Detected
A positive result does not mean you have cancer. It means a signal has been detected that requires further investigation.
Your physician can help determine the appropriate next steps, including additional testing or imaging where needed.
Screening Is More Useful When Someone Helps You Understand What Comes Next.
At Stem, Cancerguard is not treated as an isolated laboratory test. Your result can be considered alongside your health history, existing screening and wider health picture.
Physician-Guided
Understand whether Cancerguard is appropriate for you before testing.
Clear Interpretation
Review your result with a physician rather than navigating a report alone.
Coordinated Next Steps
If further investigation is appropriate, understand where to go from there.
Connected Care
Keep your screening information within a broader, ongoing picture of your health.
Who May Consider Cancerguard?
Cancerguard may be worth discussing with your physician if you:
- Want to take a more proactive approach to cancer screening
- Want screening beyond cancers covered by established routine programs
- Have age-related or other cancer risk factors
- Have a family history that makes additional screening worth discussing
- Want another layer of information alongside your existing screening
Cancerguard is intended for adults aged 50 to 84 with no cancer diagnosis in the past three years. Your physician can help determine whether the test is suitable for you.
Look Deeper This October.
Get a broader layer of proactive cancer screening with one simple blood draw, with physician guidance from Stem Health before and after your test.
Questions & Answers.
What is Cancerguard?
Does Cancerguard diagnose cancer?
Does Cancerguard replace mammograms or colonoscopies?
How is the test performed?
How long do results take?
What happens after I receive my result?
What does a negative result mean?
What does a positive result mean?
Can Cancerguard detect every cancer?
Who is Cancerguard intended for?
Can I book without a membership?
Know More. Earlier.
Cancerguard gives you another way to look proactively at your health, beyond the cancers covered by routine screening alone.
One blood draw. More than 50 cancer types and subtypes. Physician guidance around what comes next.
Book Cancerguard
Share your details and our care team will be in touch to talk through whether Cancerguard is right for you and arrange your blood draw.
Cancerguard is a prescription-only laboratory-developed test performed by Exact Sciences. The test does not detect all cancers and is not a replacement for recommended cancer screening. False-positive and false-negative results may occur.
Care Rooted in You.
A new standard of proactive, membership-based primary care. A doctor who knows you, diagnostics that reveal the full picture, and coordinated care that moves your health forward.
Join Stem