How do you catch flesh-eating bacteria?

Reviewed by Yoshinori Abe, MD

Internal Medicine

Flesh-eating bacteria, medically known as necrotizing fasciitis, is a rare but serious infection typically contracted when open cuts, scrapes, or wounds come into contact with specific bacteria. These bacteria are commonly found in soil, freshwater, saltwater, and even on human skin. Early symptoms can include severe pain, swelling, redness, and fever, and the infection can spread rapidly, making prompt medical attention critical.

If you have a wound and are experiencing unusual pain, swelling, or other concerning symptoms, don't wait to find out what's wrong. Because necrotizing fasciitis progresses quickly, understanding your symptoms early could make a life-saving difference. Take a free, instant, online symptom check to gain clarity on what you may be dealing with and get guidance on your next steps.

Reviewed for medical accuracy: 07/15/2026

Important Next Steps

Learn if symptoms suggest a serious infection Discover possible causes of your skin changes Find out if it could spread fast See OTC options for pain and swelling Find a doctor for skin infections Understand safe home care for skin wounds Check if symptoms need urgent treatment

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Explanation

Flesh-eating bacteria, scientifically known as necrotizing fasciitis, is a serious infection that can happen when certain types of bacteria enter the body through cuts, scrapes, or wounds. These bacteria are often found in the soil.

How It Happens:

Cuts and Wounds: The bacteria can enter the body through any break in the skin, like a cut or scrape.
Soil Contact: Since these bacteria can live in soil, coming into contact with contaminated soil can be a risk if you have a skin break.

Prevention Tips:

Clean Wounds: Always clean cuts and scrapes with soap and water.
Cover Wounds: Use a clean bandage to cover any open wounds.
Avoid Contaminated Areas: Be cautious when handling soil if you have open cuts.

Remember, if you think you might have an infection or are experiencing concerning symptoms, you can use Ubie's free AI symptom checker to help assess your condition and determine if you need to see a doctor right away.

(References)

Baumgardner DJ. (2012). Soil-related bacterial and fungal infections. Journal of the American Board of Family Medicine : JABFM, 22956709.

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