Your Dog Licks You Out of Affection, But This Can Be a Dan:ger for Your Health. | July 26, 2025

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Your Dog Licks You Out of Affection, But This Can Be a Dan:ger for Your Health.

Dogs are loyal and loving companions, and many owners enjoy their displays of affection, such as licking. However, while this may seem like a harmless demonstration of affection, allowing your dog to lick you can pose health risks. There are important reasons why it’s advisable to avoid this practice, as dog saliva contains bacteria and microorganisms that can cause various diseases in humans.

Bacteria and Pathogens in a Dog’s Mouth

A dog’s mouth is no cleaner than a human’s. In fact, dogs often explore the world with their mouths, licking surfaces, eating things off the ground, and even grooming themselves in areas that contain bacteria. As a result, their saliva can harbor microorganisms such as Escherichia coli (E. coli), Salmonella, and Campylobacter, which can cause serious gastrointestinal infections if they come into contact with the mouth, eyes, or open skin wounds.