New Colorectal Cancer Tests Offer More Options

Updated colorectal cancer screening guidelines released in May 2026 introduce new testing options to improve early detection and access to care. The guidelines now feature an at-home stool test to detect molecular markers and a blood-based test available at doctor's offices. These additions complement existing stool tests and direct visual exams like colonoscopies. Adults with average risk are still advised to begin screening at age 45 and continue through age 75, or longer if recommended.

Colonoscopy remains the gold standard for screening, particularly for individuals with a family history of colorectal cancer, genetic predispositions, or those experiencing symptoms such as blood in the stool. While the new at-home and blood tests offer convenience, they are primarily recommended for those who decline a colonoscopy or stool-based screening. A positive result from any screening test will necessitate a follow-up colonoscopy. Early detection is crucial as colorectal cancer often presents with no early symptoms.