Nail Fungus

A fungus is an organism that lives in warm moist areas. Fungus of the toenails is a common problem that can affect people of all ages, although it most commonly affects individuals who are older. 

Toenail fungus often begins as an infection in the skin called tinea pedis (also known as athlete’s foot). The fungus often starts under the nail fold at the end of the nail. Over time it grows underneath the nail and causes changes to its appearance, such as a yellow or brownish discoloration. It can also cause thickening and deformity of the toenail. 

Many people have difficulty with their toenails and need assistance in caring for them. A foot and ankle surgeon can diagnose the cause of toenail problems and recommend treatments.

Find an ACFAS Physician
and and
or  and
or 

Foot Diagram
  • Where Do you Hurt?
  • Interactive Foot Diagram

Search A-to-Z Conditions
  • or, browse by letter (All)
  • ABCDEFGHIJKLM
    NOPQRSTUVWXYZ

Search for an Article, Video, or Podcast
  • American College of Foot and Ankle Surgeons
  • Founded in 1942, the American College of Foot and Ankle Surgeons is a specialty medical society of more than 6,000 foot and ankle surgeons. All Fellows of the College are board certified by the American Board of Podiatric Surgery. OUR VISION IS CLEAR: To serve society as the preeminent source of knowledge for foot and ankle surgery. OUR MISSION IS SOLID: To advance the competency of our members and the care of our patients.
  • HONcodeWe comply with the HONcode standard for health trust worthy information.
  • Visit our external communities:
    • Twitter
    • Facebook
Copyright © 2013  |  American College of Foot and Ankle Surgeons (ACFAS), All Rights Reserved.  |  Privacy Statement  |  Disclaimer |  Terms and Conditions |  Site Map |  Información en Español  |
8725 West Higgins Road, Suite 555, Chicago, IL 60631-2724  ▪  Phone: (773) 693-9300  ▪  (800) 421-2237  ▪  Fax: (773) 693-9304  ▪  E-mail ACFAS