Goodbye colonoscopy? Simple stool test detects 90% of colorectal cancers

Scientists at the University of Geneva have created the first detailed catalogue of gut bacteria at the subspecies level, unlocking powerful new ways to detect colorectal cancer. By applying machine learning to stool samples, they achieved a 90% detection rate—nearly matching colonoscopies, but with far less cost and discomfort. This breakthrough could revolutionize early cancer screening, helping catch the disease before it advances.