U.S. doctors online nowAsk doctors free
A 32-year-old member asked:

What happens if you've quit smoking at 25 years old. about how long will your lungs take to get back to where they were?

1 doctor answer1 doctor weighed in
Dr. Robert Fietsam
Surgery - Thoracic 37 years experience
Maybe 5-8 years: It is hard to find research on that particular issue, but there are tests that a Pulmonary Specialist can perform (FEV1, lung capacity, arterial blood gases), that could check how good your lungs currently are. For long time smokers, 10-15 years to reduce risk of lung cancer to normal population.
Created for people with ongoing healthcare needs but benefits everyone.
Last updated Jan 25, 2016


Content on HealthTap (including answers) should not be used for medical advice, diagnosis, or treatment, and interactions on HealthTap do not create a doctor-patient relationship. Never disregard or delay professional medical advice in person because of anything on HealthTap. Call your doctor or 911 if you think you may have a medical emergency.