“Leaky gut syndrome” is a term often used to describe increased intestinal permeability, and people commonly report symptoms like bloating, gas, food sensitivities, fatigue, brain fog, diarrhea or constipation, and sometimes skin issues such as acne or eczema, although these symptoms are not specific and can overlap with many digestive or autoimmune conditions. There is no widely accepted standard medical test specifically to diagnose “leaky gut” as a standalone condition; doctors usually evaluate symptoms and look for underlying issues such as IBS, celiac disease, infections, inflammation, or other gastrointestinal disorders. Working with a healthcare professional can help you review your medical history, run appropriate blood, stool, or intolerance tests if needed, and create a targeted plan to improve gut health while ruling out more serious or treatable causes.