Cigarette smoking is the most important risk factor in the development of lung cancer. It is estimated that as many as 90 percent of lung cancer diagnoses could be prevented if cigarette smoking were eliminated. Environmental tobacco smoke in non-smokers also increases a person’s risk of developing lung cancer.
The most common signs of lung cancer are:
• Persistent cough
• Sputum streaked with blood
• Chest painRecurring pneumonia or bronchitis
- Q What are the early symptoms of lung cancer?
- Q Should I talk to my doctor about my lung cancer symptoms?
- Q What are the most common signs of lung cancer?
- Q Could my cough be telling me that I have cancer?
- Q What could cause my toes to bump upward at the tips?
- Q Can the severity of my cough indicate whether or not I have lung cancer?