Sputum AFB Test Explained: Normal Range, Positive Result Meaning, TB Diagnosis & Report Reading (India 2026) | स्पुटम AFB टेस्ट गाइड
Sputum AFB Test Explained: Positive vs Negative Report, TB Diagnosis & What It Means (India 2026) स्पुटम AFB टेस्ट: पॉजिटिव vs नेगेटिव रिपोर्ट, TB निदान और रिपोर्ट पढ़ने की पूरी गाइड A plain-language guide for patients & families · भारतीय मरीज़ों के लिए सरल मार्गदर्शिका India carries the world's largest burden of tuberculosis — nearly a quarter of all TB cases globally occur in India. If you have had a persistent cough lasting more than two weeks, have been coughing up blood, or have unexplained weight loss, night sweats, and low-grade fever, your doctor will almost certainly order a Sputum AFB (Acid-Fast Bacilli) test — the primary microbiological test to detect TB bacteria directly in your sputum (phlegm/mucus). A positive sputum AFB report means Mycobacterium tuberculosis — the bacterium that causes TB — has been seen under the microscope in your coughed-up sample. This guide explains the Sputum AFB test in simple English and Hindi — what AFB m...