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Can injuries cause viral oral infections?

One of the most common symptoms of viral oral infections is the appearance of small sores around the mouth. Although these sores may look like they could have been caused by an injury, they are really the result of the virus. Injuries do not cause viral oral infections. Instead, viruses, which can be passed from person to person, are responsible for these sores.

Yes, injuries can produce viral infections. The classic example of this is found with recurrent herpes infections of the lips. Once infected with herpes, it appears that the body "learns to live" with the virus.  If the lips are injured by excessive sunlight or physical trauma, the outer covering of the lip (epithelium) proliferates, making new DNA. It is at this point that the virus infects the cell and turns it into a virus making machine, ultimately killing the cell and causing the infection.

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Important: This content reflects information from various individuals and organizations and may offer alternative or opposing points of view. It should not be used for medical advice, diagnosis or treatment. As always, you should consult with your healthcare provider about your specific health needs.