U.S. doctors online nowAsk doctors free
A 33-year-old member asked:

Can you tell me how smoking cigarettes cause cancer?

1 doctor answer1 doctor weighed in
Dr. Alan Wartenberg
A Verified Doctoranswered
A US doctor answeredLearn more
Nobody truly knows: but the chronic irritation of certain aromatic hydrocarbons in the smoke ("tars") progressively irritates cells, increases the number that die, with new ones taking their place that over many years become more and more abnormal (metaplasia), finally becoming very abnormal (dysplasia) and ultimately becoming cancer (neoplasia). I do not know the exact cellular mechanisms, but some scientists do.

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
Educational text
Free
Talk to a doctor
24/7 visits - just $39!
50% off with $15/month membership

Similar questions

A 39-year-old member asked:

Could you tell me what are some diseases/kinds of cancer caused by smoking cigarettes?

1 doctor answer1 doctor weighed in
Dr. Peter Flaherty
Specializes in Cosmetic Dentistry
Lots: One of the worst and most deadly is oral cancer. When you get your teeth cleaned at your dentist's office make sure they include an oral cancer screening.
A 49-year-old member asked:

How does smoking cigarettes cause some cancers?

1 doctor answer2 doctors weighed in
Dr. Andrew Turrisi
Radiation Oncology 47 years experience
Tobacco: When burned produces a number of arylhydrocarbons, and other carcinogens that directly attack human dna leading to mutations. Some are repaired, others propagate over time, mean time, nicotine addicts. The more exposure, probabilistic risk increases for cancer, cardiovascular and lung disease. Evidence is overwhelming indisputable..
A 43-year-old member asked:

How can smoking cigarettes cause cancer?

1 doctor answer2 doctors weighed in
Dr. Thomas Bozzuto
Specializes in Emergency Medicine
Serious consequence: Smoking causes more than four in five cases of lung cancer. Lung cancer has one of the lowest survival rates of all cancers. Tobacco smoke contains more than 70 different cancer-causing substances. When you inhale smoke, these chemicals enter your lungs and spread around the rest of your body. Scientists have shown that these chemicals can damage dna and change important genes.
A 41-year-old member asked:

Could you tell me what is the most common cause of cancer?

1 doctor answer3 doctors weighed in
Dr. Charles Sturgis
Pathology 29 years experience
Tobacco: There are many things that can contribute to the develpment of cancers, and each type of cancer has unique risks. The number one cause of cancer death for adult men and adult women in the U.S. Is lung cancer. Lung cancer is caused by smoking. Tobacco products are not glamorous, they are lethal.

Related questions

A 35-year-old member asked:
1 doctor answer1 doctor weighed in
A 20-year-old female asked:
2 doctor answers5 doctors weighed in
A 36-year-old member asked:
1 doctor answer3 doctors 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
Educational text
Free
Talk to a doctor
24/7 visits - just $39!
50% off with $15/month membership
Last updated May 27, 2014
Connect with a U.S. board-certified doctor by text or video anytime, anywhere.
24/7 visits - just $39!
50% off with $15/month membership

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.