Also known as: Secondhand smoke - risks, Cigarette smoking - risks, Smoking and smokeless tobacco - risks or Risks of tobacco
- Tobacco is an addictive substance because it contains the chemical nicotine.
- Tobacco contains more than 19 known cancer-causing chemicals (most are called "tar.")
- Heart and blood vessel problems:
- Cancer (especially in the lung, mouth, larynx, esophagus, bladder, kidney, pancreas, and cervix)
- Poor wound healing, especially after surgery
- Lung problems such as emphysema and chronic bronchitis, or asthma that is harder to control
- Problems during pregnancy, such as babies born at low birth weight, premature labor, miscarriage, and cleft lip
- Other health risks or problems:
- Increased risk of mouth or nasal cancer
- Gum problems, tooth wear, and cavities
- Worsening high blood pressure and angina
- Heart attacks and heart disease
- Lung cancer
- Sudden and severe reactions, including those involving the eye, nose, throat, and lower respiratory tract
- Asthma (children with asthma who live with a smoker are much more likely to visit the emergency room)
- Infections, including virus-caused upper respiratory infections, ear infections, and pneumonia
- Lung damage (poor lung function)
- Sudden infant death syndrome (SIDS)
- Family members, friends, and coworkers may be supportive or encouraging.
- Talk to your doctor about nicotine replacement therapy and smoking cessation medications.
- If you join smoking cessation programs, you have a much better chance of success. Such programs are offered by hospitals, health departments, community centers, and work sites. See: Stop smoking support programs
Tobacco is a plant. Its leaves are smoked, chewed, or sniffed for a variety of effects.
HEALTH RISKS OF SMOKING OR SMOKELESS TOBACCO
There are many more reasons to quit using tobacco. Knowing the serious health risks may help motivate you to quit. When used over a long period, tobacco and related chemicals such as tar and nicotine can increase your risk of many health problems.
Smokers who switch to smokeless tobacco instead of quitting tobacco completely still have a number of health risks:
HEALTH RISKS OF SECONDHAND SMOKE
Those who are regularly around the smoke of others (secondhand smoke) have a higher risk of:
Infants and children who are regularly exposed to secondhand smoke are at risk of:
Like any addiction, quitting tobacco is difficult, especially if you are acting alone. There are a lot of ways to quit smoking and many resources to help you. See: Smoking - tips on how to quit
Boffetta P, Hecht S, Gray N, Gupta P, Straif K. Smokeless tobacco and cancer. Lancet Oncol. 2008;9:667-675.
Parkes GT, Greenhalgh T, Griffin M, Dent R. Effect on smoking quit rate of telling patients their lung age: the Step 2 quit randomised controlled trial. BMJ. 2008:336:598-600.
Boffetta P, Straif K. Use of smokeless tobacco and risk of myocardial infarction and stroke: systematic review with meta-analysis. BMJ. 2009;339:b3060. doi: 10.1136/bmj.b3060.
U.S. Preventive Services Task Force. Counseling and interventions to prevent tobacco use and tobacco-caused disease in adults and pregnant women. U.S. Preventive Services Task Force reaffirmation recommendation statement. Ann Intern Med. 2009;150:551-555.
George TP. Nicotine and tobacco. In: Goldman L, Schafer AI, eds.Cecil Medicine. 24th ed.Philadelphia,PA: Saunders Elsevier; 2011:chap 31.
- Review date:
- September 11, 2013
- Reviewed by:
- David Zieve, MD, MHA, Medical Director, A.D.A.M., Inc., and David C. Dugdale, III, MD, Professor of Medicine, Division of General Medicine, Department of Medicine, University of Washington School of Medicine.
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