Ringworm of the body

Definition

Ringworm is a skin infection that is caused by fungi. It is also called tinea.

Related skin fungus infections may appear:

Alternative Names

Tinea corporis; Fungal infection - body; Tinea circinata; Ringworm - body

Causes

Fungi are germs that can live on the dead tissue of the hair, nails, and outer skin layers. Ringworm of the body is caused by mold-like fungi called dermatophytes.

Ringworm of the body is common in children, but can occur in people of all ages.

Fungi thrive in warm, moist areas. A ringworm infection is more likely if you:

Ringworm can spread quickly. You can catch it if you come into direct contact with an area of ringworm on someone's body. You can also get it by touching items that have the fungi on them, such as:

Pets can also spread ringworm. Cats are common carriers.

Symptoms

The rash begins as a small area of red, raised spots and pimples. The rash slowly becomes ring-shaped, with a red, raised border and a clear center. The border may look scaly.

The rash may occur on the arms, legs, face, or other exposed body areas.

The area may be itchy.

Exams and Tests

Your health care provider can often diagnose ringworm by looking at your skin.

You may also need the following tests:

Treatment

Keep your skin clean and dry.

Use creams that treat fungal infections.

To use this medicine:

Your provider may prescribe medicine to take by mouth if your infection is very bad.

A child with ringworm can return to school once treatment has started.

To prevent the infection from spreading:

Infected pets should also be treated. This is because ringworm can spread from animals to humans by contact.

Outlook (Prognosis)

Ringworm often goes away within 4 weeks when using antifungal creams. The infection may spread to the feet, scalp, groin, or nails. 

Possible Complications

Two complications of ringworm are:

When to Contact a Medical Professional

Contact your provider if ringworm does not get better with self-care.

References

Dinulos JGH. Superficial fungal infections. In: Dinulos JGH, ed. Habif's Clinical Dermatology. 7th ed. Philadelphia, PA: Elsevier; 2021:chap 13.

Hay RJ. Dermatophytosis (ringworm) and other superficial mycoses. In: Bennett JE, Dolin R, Blaser MJ, eds. Mandell, Douglas, and Bennett's Principles and Practice of Infectious Diseases. 9th ed. Philadelphia, PA: Elsevier; 2020:chap 266.

Patterson JW. Mycoses and algal infections. In: Patterson JW, ed. Weedon's Skin Pathology. 5th ed. Philadelphia, PA: Elsevier Limited; 2021:chap 26.


Review Date: 11/18/2022
Reviewed By: Elika Hoss, MD, Assistant Professor of Dermatology, Mayo Clinic, Scottsdale, AZ. Also reviewed by David C. Dugdale, MD, Medical Director, Brenda Conaway, Editorial Director, and the A.D.A.M. Editorial team.
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