👉 In medicine, a tuberculin test is a diagnostic method used to detect tuberculosis (TB) in people who have not been exposed. It involves injecting small amounts of a protein called tuberculin into the skin or muscle to help identify TB cells. Tuberculin is a synthetic protein that can mimic the appearance of TB cells on the surface of the skin. When a patient's immune system detects these proteins, it triggers an immune response and can lead to symptoms such as coughing, fatigue
