While smoking remains a primary risk factor for respiratory illnesses, many non-smokers can still develop lung disease. Exposure to smoke, dust, exhaust fumes, and pollutants can cause inflammation and long-term lung damage. Prolonged contact with secondhand smoke or environments rich in dust or chemicals also increases the risk of pneumoconiosis, chronic obstructive pulmonary disease, interstitial lung disease, and pulmonary fibrosis.

Lung damage does not always present with obvious symptoms. Some individuals experience mild symptoms that are easily mistaken for a common cold but persist longer than usual. In early stages, patients may notice slight shortness of breath during exertion, such as climbing stairs or exercising, accompanied by increased fatigue. Some may also experience a persistent cough or mild, transient chest tightness.

As the condition progresses, symptoms can become more pronounced, including gradually worsening shortness of breath, a cough lasting for many weeks, chest pain when breathing deeply, or prolonged fatigue. In some cases, individuals may experience weight loss or cough up blood. These are signs that require early medical examination to determine the cause, even in non-smokers.

To protect lung health, everyone should avoid tobacco and limit exposure to smoke, dust, chemicals, air pollution, and other respiratory irritants. Individuals working in environments with high levels of dust or chemicals should use appropriate protective equipment.

Maintaining regular physical activity and a balanced diet helps improve respiratory function and boost immunity. Individuals experiencing symptoms like a persistent cough, shortness of breath during exertion, or chest tightness should seek early medical attention. Examinations may include X-rays, computed tomography scans, lung function tests, or other necessary tests to identify the cause. Even without clear symptoms, those with risk factors should undergo regular check-ups for early detection of any abnormalities.

Master, Doctor Nguyen Thac Dung

Respiratory Department

Tam Anh General Hospital