How to Identify and Treat Ringworm

Ringworm is a skin infection sparked by a fungus.

It’s easily identifiable by a circular, ring-shaped rash.

Children are especially susceptible to ringworm.

Different Types of Ringworm

Verywell / Laura Porter

Ringworm can also be passed from animals and pets, especially puppies and kittens.

It is even possible to get ringworm from objects (by sharing hats, for example).

This article will explain how to recognize, treat, and prevent ringworm.

Tinea corporis infection (ringworm)

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It also covers rare serious complications of this common fungal skin disease.

Types of Ringworm

Ringworm is so-named because of its circular shape.

Also known astineaordermatophytosis, it is a fungal infection that can affect the skin, hair, and nails.

ringworm on arm

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It has nothing to do with worms.

Sometimes, though, ringworm symptoms can be confused with otherskin rashes.

Some ringworm infections developvesicles(fluid-filled blisters) because of the immune system’s exaggerated response to the infection.

Ringworm on leg

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Ringworm can look different on certain parts of the body.

There may also be boggy, thickened skin and tiny oozing sores on the scalp calledkerions.

What Causes Ringworm?

tinea cruris

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Approximately 40 different species of fungi cancause ringworm, according to the CDC.

The scientific names for these fungi areTrichophyton, Microsporum, andEpidermophyton.

These dermatophytes survive on dead keratin, a protein in the top layer of theepidermis.

tinea capitis hair loss

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How Ringworm Is Diagnosed

Ringworm infection is pretty self-apparent, given its unmistakable appearance.

Mostdermatologistscan diagnose ringworm simply by looking at it.

If there is any doubt, a simple, in-office test scaleKOH testcan provide definitive proof.

granuloma annulare

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The chemical breaks down everything but the fungus, making it easier to identify.

Sometimes, a dermatologist will use a special light called aWood’s lampto diagnose a fungal infection.

When illuminated by the ultraviolet light, the fungus will look blue-green.

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How Ringworm Is Treated

Ringworm doesn’t always go away on its own and should be treated.

Prognosis

Fungal infections of the skin can be itchy and uncomfortable and even cause unsightly lesions.

Summary

Ringworm (tinea) is a common fungal skin infection that causes a ring-shaped rash.

Centers for Disease Control and Prevention.Fungal diseases: ringworm.

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Muth CC.Fungal nail infection.JAMA.

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