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Definition
By Mayo Clinic staff
An infection of nail fungus occurs when fungi infect one or more of your nails. A nail fungal infection may begin as a white or yellow spot under the tip of your fingernail or toenail. As the nail fungus spreads deeper into your nail, it may cause your nail to discolor, thicken and develop crumbling edges — an unsightly and potentially painful problem.
An infection with nail fungus may be difficult to treat, and infections may recur. But medications are available to help clear up nail fungus.
- Onychomycosis. The Merck Manuals: The Merck Manual for Healthcare Professionals. http://www.merck.com/mmpe/sec10/ch125/ch125c.html?qt=nail%20fungus&alt=sh. Accessed June 30, 2009.
- Goldstein A, et al. Onychomycosis. http://www.uptodate.com/home/index.html. Accessed June 30, 2009.
- Nail problems. American Podiatric Medical Association. http://www.apma.org/MainMenu/Foot-Health/FootHealthBrochures/GeneralFootHealthBrochures/NailProblems.aspx. Accessed June 30, 2009.
- Watanabe D, et al. Successful treatment of toenail onychomycosis with photodynamic therapy. Archives of Dermatology. 2008;144:19.
- De Berker D. Fungal nail disease. The New England Journal of Medicine. 2009;360:2108.
- Hinojosa J, et al. Which antifungal is best for toenail onychomycosis? The Journal of Family Practice. 2007;56:581.
