Lung Cancer Alert: Is Your Cough a Warning Sign?

Lung Cancer Alert: Is Your Cough a Warning Sign?
      Lung Cancer – A silent killer that can take your loved ones unexpectedly. It is one of the most common cancers in Thailand, and smoking is the leading cause. But here’s the question: “What kind of cough should you worry about?” Many people dismiss coughing as a minor issue, but certain types of coughs may actually be warning signs of lung cancer. This article will help you identify the types of coughs you shouldn't ignore — and when you should see a doctor for early diagnosis and timely treatment.

Types of coughs that may indicate lung cancer :

• Chronic cough – If you’ve been coughing constantly for more than 3 weeks (or even months).
• Severe cough with shortness of breath – Includes fatigue, weight loss, or even a change in voice.
• Coughing up blood – Especially if you see bright red blood in your phlegm regularly.

      Lung cancer symptoms go beyond just a chronic cough! Besides coughing, other lung-related signs include phlegm, bloody sputum, chest pain, and breathlessness. Some patients may also experience general cancer symptoms, such as fatigue, loss of appetite, or sudden weight loss.

If the cancer has spread (metastasized), additional symptoms may include :

• Lymph nodes – Swelling or blocked veins causing facial swelling.
• Pleura (lung lining) – Fluid buildup around the lungs (pleural effusion).
• Brain – Headaches, seizures, paralysis, drowsiness, or unconsciousness.
• Bones – Bone pain or fractures.
• Liver – Yellowing of the skin or eyes (jaundice).

      Some may also develop Paraneoplastic Syndrome, with unexplained fever, joint/muscle pain, calcium imbalance, or abnormal hormone levels — symptoms that often improve if the tumor is removed but may return if the cancer recurs.

      As we know, smoking is the leading cause of lung cancer, along with increasing air pollution and toxins. The best protection against lung cancer is to stop smoking, avoid second-hand smoke, and most importantly, undergo annual lung screenings. High-risk individuals are recommended to have a Low-Dose CT Lung Scan — a method proven to detect cancer at an early stage, significantly reducing mortality and improving recovery chances.

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