Early lung cancer often does not cause symptoms. But as the cancer grows, common symptoms may include:

• a cough that gets worse or does not go away
• breathing trouble, such as shortness of breath
• constant chest pain
• coughing up blood
• a hoarse voice
• frequent lung infections, such as pneumonia
• feeling very tired all the time
• weight loss with no known cause

Most often these symptoms are not due to cancer. Other health problems can cause some of these symptoms. Anyone with such symptoms should see a doctor to be diagnosed and treated as early as possible.

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