U.S. doctors online nowAsk doctors free
A 44-year-old member asked:

why don't all smokers get lung cancer?

1 doctor answer4 doctors weighed in
Dr. Armando Favazza
Specializes in Psychiatry
Multiple factors: Nonsmokers as well as smokers can develop lung cancer, a disorder that involves genetic and other factors. Smoking is a major contributing cause but other mechanisms come into play such a genetic predisposition.

90,000 U.S. doctors in 147 specialties are here to answer your questions or offer you advice, prescriptions, and more. Get help now:

Ask doctors free
Personalized answers
Free
Talk to a doctor
$30 per visit with
membership

Similar questions

A 42-year-old member asked:

Why might it be that some smokers get lung cancer and some never do?

1 doctor answer2 doctors weighed in
Dr. Creighton Wright
General Surgery 56 years experience
Unclear: Different gene risks some die before the cancer evolves ---from some other condition- like heart disease!
Dr. Gerald Mandell
Nuclear Medicine 52 years experience
As an aside, a small number of people who have never smoked also get lung cancer.
May 5, 2013
Dr. Creighton Wright
General Surgery 56 years experience
Provided original answer
Absolutely And also no secondary smoke either
May 5, 2013
El Paso, TX
A 18-year-old male asked about a member:

How can my friend get lung cancer without ever smoking or being around smokers?

2 doctor answers3 doctors weighed in
Dr. Hesham Hassaballa
Pulmonary Critical Care 22 years experience
It can happen...: Unfortunately, some people - albeit a minority - can get lung cancer without having ever smoked or been around smokers. Although it is not a "genetic disorder, " per se, these people clearly have a genetic predisposition to get the disease. It is truly tragic, and many times, unexplainable. But, if diagnosed early, it is definitely treatable, like most other cancers not associated with smoking.
A 30-year-old male asked:

Is there a chance for a heavy smoker to get diagnosed with lung cancer at 30 years old ?

2 doctor answers5 doctors weighed in
Dr. Creighton Wright
General Surgery 56 years experience
Yes: Significant risk. Needs full evaluation, since many lung issues, lesions, correlate with smoking, and family history , and exposures.
A 37-year-old member asked:

What to do if i know not all smokers get lung cancer, but what about other problems?

1 doctor answer3 doctors weighed in
Dr. Matthew Cooper
Thoracic Surgery 38 years experience
Smoking: Smoking is related to all sorts of cancers, not just lung, diseases of blood vessels in the body, limitations of exercise capability, etc. It is among the worst of the potentially controllable risk factors.
A 50-year-old member asked:

How come some smokers don't get lung cancer?

1 doctor answer3 doctors weighed in
Dr. Le Wang
Dr. Le Wanganswered
Internal Medicine 36 years experience
Not fully know: Not fully know, possibly genetics. Importantly, smoking is the primary risk factor for causing 90% of lung cancer. Though it is clear that some people who smoke their whole lives never develop lung cancer, quitting smoking remains the most important aspect of lung cancer prevention and should be strongly encouraged.

Related questions

A 29-year-old member asked:
2 doctor answers4 doctors weighed in
A 33-year-old female asked:
1 doctor answer1 doctor weighed in

90,000 U.S. doctors in 147 specialties are here to answer your questions or offer you advice, prescriptions, and more. Get help now:

Ask doctors free
Personalized answers
Free
Talk to a doctor
$30 per visit with
membership
Last updated Oct 8, 2017

Disclaimer:

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.