A stool analysis is a series of tests performed on a stool (feces) sample to help diagnose various conditions affecting the alimentary canal (digestive tract). This analysis can detect infections caused by parasites, viruses, or bacteria, identify issues with nutrient absorption, and even help in the early detection of gastrointestinal cancers. By examining the stool, healthcare providers can uncover underlying digestive issues, infections, and disorders that may not be immediately apparent.