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Increased risk of oral cancer caused by smokeless tobacco is present in countries such as the United States but particularly prevalent in Southeast Asian countries where the use of smokeless tobacco is common. [5] [47] [48] Smokeless tobacco is associated with a higher risk of developing head and neck cancer due to the presence of the tobacco ...
This is an accepted version of this page This is the latest accepted revision, reviewed on 7 January 2025. Circumstances, mechanisms, and factors of tobacco consumption on human health "Health effects of smoking" and "Dangers of smoking" redirect here. For cannabis, see Effects of cannabis. For smoking crack cocaine, see Crack cocaine § Health issues. "Smoking and health" redirects here. For ...
Tobacco is the greatest single cause of oral and pharyngeal cancer. Using tobacco increases the risk of oral cancer by 3 to 6 times [20] [9] and is responsible for around 40% of all oral cancers. [21] Smokeless tobacco (including chewing tobacco, snuff, snus) also causes oral cancer. [22] [23] [24] Cigar and pipe smoking are also important risk ...
Smokeless tobacco keratosis (STK) [4] is a condition which develops on the oral mucosa (the lining of the mouth) in response to smokeless tobacco use. Generally it appears as a white patch, located at the point where the tobacco is held in the mouth. The condition usually disappears once the tobacco habit is stopped.
Approximately 28 chemical constituents present in smokeless tobacco can cause cancer, among which nitrosamine is the most prominent. [12] Smokeless tobacco consumption is widespread throughout the world. [12] Once addicted to nicotine from smokeless tobacco use, many people, particularly young people, expand their tobacco use by smoking ...
This form of cancer is often seen in those who chew tobacco or use snuff orally, so much so that it is sometimes referred to as "Snuff dipper's cancer". Chewing betel nuts is an additional risk factor commonly seen in Taiwan.
Smoking tobacco causes various types and subtypes of cancers [94] (particularly lung cancer, cancers of the oropharynx, [95] larynx, [95] and mouth, [95] esophageal and pancreatic cancer). [18] Using tobacco, especially together with alcohol , is a major risk factor for head and neck cancer . 72% of head and neck cancer cases are caused by ...
Squamous-cell carcinoma of the lung is closely correlated with a history of tobacco smoking, more so than most other types of lung cancer.According to the Nurses' Health Study, the relative risk of SCC is approximately 5.5, both among those with a previous duration of smoking of 1 to 20 years, and those with 20 to 30 years, compared to never-smokers. [2]