Skip to Content
A fungal nail infection is a fungus gets into your fingernail, toenail, or the skin under your nail, usually through a small cut.
The infected toenail usually turns white or yellow. Sometimes it's painful.
Toenails that are exposed to moisture and warmth a lot are more likely to get infected by a fungus. This can happen from wearing sweaty shoes often and from walking barefoot on shower floors.
Toenail fungus usually doesn't need treatment unless it's causing pain. It often comes back after it has cleared up.
Current as of:
February 20, 2015
Patrice Burgess, MD - Family Medicine & E. Gregory Thompson, MD - Internal Medicine
To learn more about Healthwise, visit Healthwise.org.
© 1995-2015 Healthwise, Incorporated. Healthwise, Healthwise for every health decision, and the Healthwise logo are trademarks of Healthwise, Incorporated.
© Copyright 2016 Rush-Copley Medical Center • 2000 Ogden Avenue; Aurora, IL 60504
Main: 630-978-6200 • Physician Referral & Information: 630-978-6700 or 866-4COPLEY (866-426-7539)