tobacco that is sniffed or chewed and chemicals: MedlinePlus Medical Encyclopedia Image Smokeless Tobacco and Health Risks

Regular checkups with the dentist Research suggests that As cancer develops and progresses, a person may notice symptoms such as: bleeding and pain in the mouth numbness in one or more areas of the mouth a lump or buildup of tissue in the gums sore throat loose teeth red and white patches on the mouth or tongue difficulty moving the tongue or chewing discomfort or difficulty while chewing or swallowing Oral cancer may appear differently based on its stage, location in the mouth, and other factors

"Garagiola, Who Quit, Warns About Chewing Tobacco" Archived 2016-02-04 at the Wayback Machine The Times By George Vecsey Published: May 29, 2010 "Smokeless Tobacco"

Types of tobacco consumption and the oral microbiome in the United Arab Emirates Healthy Future (UAEHFS) Pilot Study

Smokeless tobacco use and reproductive outcomes among women: a systematic review [version 2