Can you get lung cancer after only 4 years of smoking?

Your chance of getting lung cancer after only 4 years are low. Lung cancer is caused by many factors that include what you smoke, how much and how long you have smoked, family history for cancer and many environmental factors. It is also the cause of many other diseases that include emphysema and heart disease and stroke, as well as many other illnesses. However, the #1 thing you can do to reduce your chance of getting lung cancer is to stop smoking now.
Hope this helps,
Dr T