Risks of tobacco
Knowing the serious health risks of using tobacco may help motivate you to quit. Using tobacco over a long time can increase your risk of many health problems.
Tobacco is a plant. Its leaves are smoked, chewed, or sniffed for a variety of effects.
- Tobacco contains the chemical nicotine, which is an addictive substance.
- Tobacco smoke contains more than 7,000 chemicals, at least 70 of which are known to cause cancer.
- Tobacco that is not burned is called smokeless tobacco. Including nicotine, there are at least 30 chemicals in smokeless tobacco that are known to cause cancer.
HEALTH RISKS OF SMOKING OR USING SMOKELESS TOBACCO
There are many health risks from smoking and using tobacco. The more serious ones are listed below.
Heart and blood vessel problems:
Other health risks or problems:
- Cancer (more likely in the lung, mouth, larynx, nose and sinuses, throat, esophagus, stomach, bladder, kidney, pancreas, cervix, colon, and rectum)
- Poor wound healing after surgery
- Lung problems, such as COPD, or asthma that is harder to control
- Problems during pregnancy, such as babies born at a low birth weight, early labor, losing your baby, and cleft lip
- Decreased ability to taste and smell
- Harm to sperm, which may lead to infertility
- Loss of sight due to an increased risk of macular degeneration
- Tooth and gum diseases
- Wrinkling of the skin
Smokers who switch to smokeless tobacco instead of quitting tobacco still have health risks:
- Increased risk of cancer of the mouth, tongue, esophagus, and pancreas
- Gum problems, tooth wear, and cavities
- Worsening high blood pressure and angina
HEALTH RISKS OF SECONDHAND SMOKE
Those who are often around the smoke of others (secondhand smoke) have a higher risk of:
- Heart attack and heart disease
- Lung cancer
- Sudden and severe reactions, including of the eye, nose, throat, and lower respiratory tract
Infants and children who are often exposed to secondhand smoke are at risk of:
- Asthma flares (children with asthma who live with a smoker are much more likely to visit the emergency room)
- Infections of the mouth, throat, sinuses, ears, and lungs
- Lung damage (poor lung function)
- Sudden infant death syndrome (SIDS)
Like any addiction, quitting tobacco is difficult, especially if you are doing it alone.
Linda J. Vorvick, MD, Clinical Associate Professor, Department of Family Medicine, UW Medicine, School of Medicine, University of Washington, Seattle, WA. Also reviewed by David Zieve, MD, MHA, Medical Director, Brenda Conaway, Editorial Director, and the A.D.A.M. Editorial team.
This information should not be used during any medical emergency or for the diagnosis or treatment of any medical condition. A licensed medical professional should be consulted for diagnosis and treatment of any and all medical conditions. Call 911 for all medical emergencies. © 1997- 2007 A.D.A.M., Inc. Any duplication or distribution of the information contained herein is strictly prohibited.