Lung cancer has long been associated with smoking, yet it also affects many individuals who have never smoked. Factors such as air pollution, secondhand smoke, workplace chemicals, and genetic predisposition can increase the risk. However, many initial symptoms are often subtle and easily dismissed.
Persistent, lingering cough
A cough is a common symptom of respiratory illnesses. However, if a cough lasts for more than a few weeks, recurs, or changes in nature, a medical check-up is advisable. Persistent coughing, hoarseness, excessive phlegm, or the presence of blood should all be noted. Even a small amount of blood when coughing is not normal and requires prompt medical evaluation.
Shortness of breath during light activity
Experiencing shortness of breath or rapid breathlessness during activities that were previously normal can be a warning sign. Experts suggest that lung tumors can narrow airways or lead to fluid accumulation around the lungs, making breathing difficult. Some individuals report noticeable fatigue when climbing stairs, walking short distances, or engaging in light exercise. Beyond breathlessness, persistent wheezing or a feeling of chest tightness should also be investigated.
Dull ache in the chest, shoulder, or back
Lung cancer can sometimes cause pain in the chest, shoulder, or back, often due to a tumor compressing nerves or spreading to surrounding tissues. This pain might be dull, persistent, or intensify with coughing, deep breaths, or laughter. Many mistake this symptom for muscle soreness from overexertion or poor posture. If the pain is unexplained and persistent, or accompanied by breathlessness and a chronic cough, medical consultation is recommended.
Persistent voice changes
While hoarseness is often linked to a cold or sore throat, if it persists for several weeks, the underlying cause might be more serious. Lung tumors can sometimes affect the nerves that control the larynx, leading to a hoarse, raspy, or unusually deep voice.
Unexplained fatigue and weight loss
Unexplained weight loss, loss of appetite, persistent fatigue, or a lingering low-grade fever are symptoms that can indicate various cancers, including lung cancer. Some individuals dismiss these as consequences of stress, overwork, or weather changes, delaying medical attention. However, if you experience weight loss without dieting or increased exercise, prolonged exhaustion, or frequent night sweats, a health check-up is crucial.
Lung cancer is often challenging to detect in its early stages because its symptoms can easily be mistaken for common respiratory ailments. Many cases are only diagnosed once the disease has progressed. Doctors recommend seeking medical advice if respiratory symptoms persist for more than two weeks, particularly for individuals over 40, current smokers, or former smokers.
High-risk individuals may be advised to undergo low-dose CT scans for early lung cancer screening. This method significantly enhances the likelihood of detecting the disease at a stage when treatment is most effective.
Bao Bao (Compiled)
