10 Key Warning Signs Of Tuberculosis

7. Swollen, Painless Lymph Nodes: Extrapulmonary Clues

While often associated with infection, persistently swollen lymph nodes, especially if painless and found in the neck, armpits, or groin, can be a crucial indicator of extrapulmonary tuberculosis. This means the TB bacteria have spread beyond the lungs to the lymphatic system. Unlike typical infection-related swelling, these nodes may be firm and remain enlarged for weeks or months. This often-overlooked sign requires specific investigation, as it points to a systemic manifestation of TB that demands targeted diagnosis beyond simple chest imaging.