Abstract
Smokeless tobacco (ST) is not burnt when it is used and is usually placed in the oral or nasal cavities against the mucosal sites that permit the absorption of nicotine into the human body. Health risks related to ST have received comparatively little attention, in spite of widespread use in many parts of the world. With the current emphasis on adverse health consequences of tobacco smoking, including exposure to environmental tobacco smoke, there may be a shift to increased use of ST. Habitual use of oral tobacco can increase the risk of oral cancer. Increasing use has been reported not only among men, but also among such vulnerable groups as children, teenagers, women of reproductive age, and by immigrants of the South Asian origin wherever they have settled. However, the known and suspected health risks associated with ST indicate that it should not be viewed as an alternative to smoking. The present review portrays a vivid description of the various ill effects of ST usage.
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