There are two forms of spit tobacco: chewing tobacco and snuff. Users keep chewing tobacco in their mouths for several hours to get a continuous high from the nicotine in the tobacco.
Snuff is a powdered tobacco that is put between the lower lip and the gum. Just a pinch is all that's needed to release the nicotine, which is then swiftly absorbed into the bloodstream, resulting in a quick high.
If you use spit/chew check your mouth often, looking closely at the places where you hold the tobacco. See your doctor right away if you have any of the following:
A sore that bleeds easily and doesn't heal
A lump or thickening anywhere in your mouth or neck
Soreness or swelling that doesn't go away
A red or white patch that doesn't go away
Trouble chewing, swallowing, or moving your tongue or jaw
All of these are warning signs of cancer. Spit/chew has been shown to cause cancer of the tongue, mouth and gums.
American Academy of Otolaryngology - Head & Neck Surgery, Inc.
June 22, 2000