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A 35-year-old member asked:

What causes lung cancer?

8 doctor answers18 doctors weighed in
Dr. Thomas Birdas
Thoracic Surgery 27 years experience
Mainly smoking: But a lot of other factors (most of which can nit be altered) may play a role. Over 85% of lung cancers are seen in smokers, so if you would like to decrease your chances of getting lung cancer (and also cardiovascular disease!) quit smoking now!
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Dr. Matthew Hennig
Surgery - Thoracic 20 years experience
Several causes...: But the most common correlation with lung cancer is smoking. Smoking alone will increase your risk of lung cancer by about 20 times by smoking one pack per day for twenty years. Other sources can be genetic (alpha-1 antitrypsin disorder), related to environmental exposures that are inhaled, or other less common reasons.
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Dr. Gurmukh Singh
Pathology 50 years experience
Second hand smoke and radon gas are also causative factors but not as strong as smoking. The other factor is genetic susceptibility.
Aug 13, 2012
Dr. David Cooke
Thoracic Surgery 23 years experience
80% by smoking: Second common cause is radon. Second hand smoke is also common cause of lung cancer.
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Dr. David Cooke
Thoracic Surgery 23 years experience
Many things: >80% of lung cancer is caused by smoking. However never smokers (defined as <100 cigarettes in lifetime) can get smoking. Risk factors include radon exposure, second hand smoke, and genetic mutations such as egfr activating mutations. For more info: http://bit.Ly/ygfoko.
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Dr. Loki Skylizard
Thoracic Surgery 21 years experience
Exposure: Risks of lung cancer: http://goo.Gl/gu9ms as noted by others, number one/major cause is exposure to inhaled carcinogens, particularly combustion/burning products (i.e. Tobacco, marijuana, etc...). Other inhalants are also noted risk factors. Be well and respect yourself.
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Dr. Byron May
32 years experience
Smoking!: Smoke from cigarettes contains approximately 35 known chemicals to cause tumors in lab rats. Smokers have a much higher incidence of lung cancer over the non-smoking population. Asbestos inhalation increases risk for mesothelioma, a very aggressive form of lung cancer. Radon, a radioactive decay product from soil uranium, is thought to be the second leading cause of lung cancer in the usa.
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Dr. Raja Mudad
Medical Oncology 33 years experience
SMOKING SMOKING : And smoking the biggest and most significant risk factor. 90% of lung cancers develop in people who have smoked. Other causes: asbestos exposure, radon.
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Dr. Loki Skylizard
Thoracic Surgery 21 years experience
Risk factors: Lung cancer is most commonly a long process of years in which the lungs are exposed to damaging substances/"carcinogens". The biggest/best known is smoking. This link may help: http://www.Cancer.Net/cancer-types/lung-cancer/risk-factors-and-prevention.
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Similar questions

A 42-year-old member asked:

How can smoking cause lung cancer?

3 doctor answers5 doctors weighed in
Dr. Pasala Ravichandran
A Verified Doctoranswered
45 years experience
Toxins: Irritation, tar and other hundreds of impurities in the cigarettes.
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A 48-year-old member asked:

What is lung cancer caused by in nonsmoker?

2 doctor answers7 doctors weighed in
Dr. Joseph Woods
Pathology 29 years experience
Possibly genetic,etc: Nonsmokers account for 15% of lung cancer cases, and these cases are often due to a combination of genetic factors, radon gas, asbestos, and air pollution including secondhand smoke. Asbestos can also cause mesothelioma, a cancer of the pleura or lining on the surface of the lungand diaphragm. The main type of lung cancer in nonsmokers is adenocarcinoma, particularly bronchoalveolar carcinoma.
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San Jose, CA
A 33-year-old male asked:

Can cyanosis be caused by lung cancer? If so, how?

1 doctor answer1 doctor weighed in
Dr. Brenda Sabrina Salgado Granados
Dr. Brenda Sabrina Salgado Granadosanswered
A US doctor answeredLearn more
Cyanosis: Hello. Cyanosis is a physical sign that is characterized by a bluish/purplish coloration of skin or mucous membranes, that is caused because of a low oxygen saturation. So yes, it can be caused by lung cancer, but there are a lot of other pathologies (mainly hearth and lung diseases) that can cause that sign.
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A 39-year-old member asked:

Does hairspray cause lung cancer?

1 doctor answer1 doctor weighed in
Dr. Sewa Legha
Medical Oncology 51 years experience
No, not really: Hair sprays are considered safe.
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NJ
A 52-year-old female asked:

Can cigars cause lung cancer?

1 doctor answer7 doctors weighed in
Dr. Ed Friedlander
Pathology 45 years experience
Yes: They&#x27;re not so deadly as cigarettes because people smoke fewer and the smoke is so disgusting that it&#x27;s not much inhaled. However, I&#x27;ve autopsied two non-smoking wives of heavy cigar smokers who died of smoker-type lung cancer -- my only non-smoker lung cancer autosies. I&#x27;d had to be a husband who had to live with that one.
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Last updated Feb 20, 2021

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