The interpretation of a 10 mm purified protein derivative (PPD) induration (raised, firm bump) in a tuberculosis (TB) test, such as the Mantoux Test or tuberculin skin test (TST), depends on various factors, including the person's risk factors, clinical presentation, and local guidelines. Generally, for individuals without specific risk factors, a 10 mm PPD induration is considered positive. However, for individuals at higher risk, such as those with compromised immune systems or recent TB exposure, a positive result may be defined as an induration size of 5 mm or greater. It is crucial to consult with healthcare professionals familiar with the current guidelines in your region to accurately interpret the test results and determine the appropriate next steps based on the specific circumstances. The interpretation of TB test results requires careful consideration of the individual's medical history, risk factors, and clinical evaluation, and should always be done by healthcare professionals with expertise in TB management.