Your Body’s Bugs

Your Body’s Bugs
Courtesy of National Institutes of Health
Updated:

Microscopic bugs called microbes can be found in your eyes, mouth, gut, skin, and everywhere else. But don’t be alarmed. Most of your microbes are useful. They help you digest food. They prevent dangerous infections in your organs. And so much more. They’re vital for your health.

This collection of microbes in your body includes bacteria, fungi, and viruses. Together, it’s called the human microbiome.

National Institutes of Health
National Institutes of Health
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A part of the U.S. Department of Health and Human Services, NIH is the largest biomedical research agency in the world.
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