Thick, foul-smelling mucus produced in the respiratory system.

An indication of a serious underlying health issue often related to respiratory infections.

स्वसन संक्रमण से संबंधित गंभीर स्वास्थ्य समस्या का संकेत।

English Usage: The foetid sputum was a clear sign that he needed medical attention.

Hindi Usage: गंदा बलगम स्पष्ट संकेत था कि उसे चिकित्सा ध्यान की आवश्यकता थी।