New Colon Cancer Tests Save Lives for People Who Skip Colonoscopies

Getting screened for colorectal cancer just became easier for millions of Americans who've been putting off the procedure.

The American Cancer Society released updated screening guidelines in May 2026 that add two new testing options alongside traditional colonoscopies. The move comes as colorectal cancer rates climb among younger adults, a troubling trend that already pushed recommended screening ages down from 50 to 45 in 2018.

The first new option is an at-home stool test that checks for hidden blood and molecular markers indicating cancer. People can take this test every three years without leaving their house or dealing with colonoscopy prep.

The second option is a blood test available at doctor's offices. This test specifically targets patients who refuse colonoscopies or stool tests, giving them a pathway to screening they might otherwise skip entirely.

Andrea Dwyer, a public health researcher who has spent nearly 20 years developing colorectal cancer prevention programs, emphasizes that offering more options helps detect cancer earlier or prevent it altogether. The guidelines still recommend colonoscopies as the gold standard, especially for people with family history or symptoms like blood in stool.

Adults at average risk should start screening at age 45 and continue until age 75 or beyond if their doctor recommends. Colonoscopies remain the only option for those experiencing symptoms or at increased risk, and any positive result from stool or blood tests requires a follow-up colonoscopy.

The Ripple Effect: These new screening options address a critical barrier in cancer prevention. Many people avoid colonoscopies due to the preparation required, time commitment, or anxiety about the procedure. By meeting patients where they are, these alternatives could catch cancers in thousands of people who would have skipped screening entirely.

The blood test option is particularly groundbreaking for reaching reluctant patients. While not as sensitive as other methods for preventing cancer, it provides a starting point for people who need gentle encouragement toward comprehensive screening.

Beyond testing, lifestyle choices make a real difference. Thirty minutes of daily physical activity, eating fruits and vegetables while limiting processed foods, and reducing alcohol intake all lower colorectal cancer risk.

The updated guidelines reflect advancing science while prioritizing one simple truth: the best screening test is the one that actually gets done.