Lung cancer is a disease where cells in the lungs grow in a way they shouldn’t. These cells can form lumps called tumors and make it harder for the lungs to work properly.
Causes
Lung cancer can be caused by:
• Smoking (the most common cause)
• Breathing in harmful substances, like asbestos or pollution
• Family history (some people inherit a higher risk)
• Radon gas, a natural gas that can build up in homes
Symptoms
People with lung cancer might notice:
• A cough that doesn’t go away
• Chest pain
• Coughing up blood
• Feeling tired all the time
• Shortness of breath
• Losing weight without trying