The process of changing or improving the characteristics of sputum, often in a medical context relating to tuberculosis treatment.
बलगम परिवर्तन
English Usage: The doctor's analysis showed a positive sputum conversion after the treatment course.
Hindi Usage: डॉक्टर का विश्लेषण दर्शाता है कि उपचार पाठ्यक्रम के बाद बलगम परिवर्तन सकारात्मक था।