Nail Fungal Infections | Symptoms


What are the symptoms of a fungal nail infection?

Signs of a fungal nail infection include nails that are:

  • Discolored (usually white or yellow)
  • Brittle
  • Crumbly, or have rough, jagged edges
  • Thick
  • Separated from the nail bed
  • Curled up or down, or are distorted in shape

You may also have pain or discomfort in the affected toes or fingers.


Treating Onychomycosis by P Rodgers, M.D. and M Bassler, M.D. (American Family Physician February 15, 2001,

Written by editorial staff

Reviewed/Updated: 04/14
Created: 02/01