Our Health Library information does not replace the advice of a doctor. Please be advised that this information is made available to assist our patients to learn more about their health. Our providers may not see and/or treat all topics found herein.
Fungal nail infections
A fungal nail infection is a fungus that 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 may be more likely to get infected by a fungus. This can happen from wearing sweaty shoes often.
Toenail fungus usually doesn't need treatment unless it's causing pain. It often comes back after it has cleared up.
Current as of: November 16, 2023
Author: Healthwise Staff
Clinical Review Board
All Healthwise education is reviewed by a team that includes physicians, nurses, advanced practitioners, registered dieticians, and other healthcare professionals.