Enterotest is a medical procedure used to diagnose various gastrointestinal conditions. It involves swallowing a small capsule that contains a string with a gelatin coating. The capsule travels through the digestive system, collecting samples of stomach acid, bile, and intestinal fluids along the way. The string is then pulled out through the mouth and the collected samples are analyzed in a laboratory to determine the presence of certain bacteria, parasites, or other abnormalities. Enterotest can help diagnose conditions such as Helicobacter pylori infection, malabsorption disorders, and small intestine bacterial overgrowth.