How does smokeless tobacco increase the risk of head and neck cancers?

Smokeless tobacco increases the risk of head and neck cancers by repeatedly exposing the oral mucosa to toxins.1

These products contain carcinogens that, when in contact with the tissues of the mouth, can damage cellular DNA. If cells with damaged DNA survive and replicate, they can accumulate and develop into cancer. The level of risk is influenced by the duration of consumption and the specific nature of the product; for instance, some varieties are manufactured to contain lower levels of carcinogens than others, which may result in a lower associated risk.1

It is important to recognize that all forms of tobacco use pose significant health risks, and avoiding these products is the most effective way to prevent tobacco-related diseases.1