Tobacco products such as cigarettes, pipes, chewing tobacco, and others are highly carcinogenic. The chemicals found in these products have been cited as a leading causes of many cancers, including oral cancer. According to The Oral Cancer Foundation, there are over 7,000 chemicals found in tobacco smoke, including over 70 known to cause cancer. Oral cancer is especially dangerous in that, generally those who have it are unaware of it in the early stages since it does not produce painful side effects until it has spread. Historically, over 75% of people over the age of 50 who have had oral cancer were regular tobacco smokers at one point in their life. Oral cancer can take many forms including unexplained bumps, bleeding, swelling, numbness, pain, and difficulty swallowing.
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