Children's Hospital Colorado

Ringworm

Get Care Now

From emergency to urgent care to 24/7 pediatric advice, we’re here to help in the heat of moment.

See your care options

  • One or more ring-shaped spots caused by a fungus
  • Has a rough edge and clearing of the center

Symptoms of Ringworm

  • Round pink patch
  • Clearing of the center as the patch grows
  • Raised, rough, scaly border
  • Usually ½ to 1 inch (12 -25 mm) in size
  • Ring slowly increases in size
  • Often only on one side of the face or body
  • Mildly itchy

Cause

  • An infection of the skin caused by a fungus. It is not caused by a worm.
  • Can often be spread to humans from puppies or kittens that have it. Pet rodents also can carry it.
  • Rarely, can be spread human-to-human. It needs direct skin contact to be passed this way. An exception is that ringworm can occur often among wrestlers. This is because of close body contact during matches.
  • Sometimes, caused by fungus in the soil.

Copyright 2000-2025 Schmitt Pediatric Guidelines LLC.

Disclaimer: this health information is for educational purposes only. You, the reader, assume full responsibility for how you choose to use it.

Look up your child's symptoms on our ChildrensMD mobile app

Use the ChildrensMD symptom checker mobile app to help you assess your child’s illness and better understand what their symptoms could mean. The app is available on iPhone, iPad and Android.

StoreApple.pngStoreGooglePlay.png

 

Get to know our pediatric experts.

Emma Cambier, FNP-BC

Emma Cambier, FNP-BC

Certified Family Nurse Practitioner

Emily Gorell, DO

Emily Gorell, DO

Dermatology

Carla Torres Zegarra, MD

Carla Torres Zegarra, MD

Dermatology, Dermatology, Pediatrics

Grant Plost, MD

Grant Plost, MD

Dermatology, Dermatology