What does it mean when no active lesions are seen in both lungs?

No active lesions in both lungs is a radiological finding indicating that there are no developing or actively progressing abnormalities in the lungs—such as those caused by inflammation, infection, tuberculosis, or tumors. This suggests that the current lung structure is essentially normal with no evident signs of active disease. However, if symptoms such as cough, sputum production, hemoptysis (coughing up blood), or chest pain occur, it is recommended to seek medical attention promptly for further evaluation.

This result indicates the absence of progressive lung lesions. Common active lesions—such as inflammatory changes in acute pneumonia, active foci in pulmonary tuberculosis, or proliferative lesions in lung tumors—were not detected. It represents a positive sign of lung health, suggesting there are currently no active pathological conditions requiring urgent intervention.

This finding is often used in screening for lung diseases. For example, during follow-up after tuberculosis treatment, the absence of active lesions indicates effective therapy and controlled disease. When found during routine physical examinations, it generally reflects no detectable active abnormalities in the lungs. However, clinical interpretation should take into account the individual's medical history and symptoms, as this result does not entirely rule out inactive lesions or early, subtle pathological changes.

In daily life, maintaining regular sleep patterns and avoiding staying up late is recommended. Smoking cessation and avoidance of secondhand smoke are essential. Outdoor activities should be minimized on hazy days, or protective masks should be worn when going outside. Regular aerobic exercise can help enhance lung function, and a balanced diet rich in vitamin-containing foods supports overall lung health.