Yes: after only four pack years it is highly likely that whatever damage has been done will be undone, and that the lungs will remain healthy, and your risk of cancer, heart disease and other damage will return to baseline risks (which includes industrial exposures, second hand smoke, air pollution etc.). Congrats on the decision to quit, and PLEASE stick with it. It is difficult, but a good investment
Answered 10/2/2016
3.1k views
A doctor has provided 1 answer
A doctor has provided 1 answer
A doctor has provided 1 answer
11 doctors weighed in across 2 answers
5 doctors weighed in across 2 answers
90,000 U.S. doctors in 147 specialties are here to answer your questions or offer you advice, prescriptions, and more.
Ask your question