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Complications
By Mayo Clinic staffNail fungus can be painful and may cause permanent damage to your nails. It also may lead to other serious infections that can spread beyond your feet if you have a suppressed immune system due to medication, diabetes or other conditions.
Fungal infections of the nail pose the most serious health risk for people with diabetes and for those with weakened immune systems, such as people with leukemia or AIDS or organ transplant recipients.
If you have diabetes, your blood circulation and the nerve supply to your feet can become impaired. You're also at greater risk for cellulitis, a potentially serious bacterial skin infection. Therefore, any relatively minor injury to your feet — including a nail fungal infection — can lead to a more serious complication, requiring timely medical care. See your doctor immediately if you suspect nail fungus.
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- Goldstein AO, et al. Onychomycosis. http://www.uptodate.com/home/index.html. Accessed April 21, 2011.
- Nail problems. American Podiatric Medical Association. http://www.apma.org/MainMenu/Foot-Health/Foot-Health-Brochures-category/Learn-About-Your-Feet/Nail-Problems.aspx. Accessed May 5, 2011.
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- Derby R, et al. Novel treatment of onychomycosis using over-the-counter mentholated ointment: A clinical case series. Journal of the American Board of Family Medicine. 2011;24:69.
- Habif TP. Nail diseases. In: Habif TP. Clinical Dermatology: A Color Guide to Diagnosis and Therapy. 5th ed. Edinburgh, U.K.; New York, N.Y.: Mosby Elsevier; 2010. http://www.mdconsult.com/books/about.do? about=true&eid=4-u1.0-B978-0-7234-3541-9..X0001-6--TOP&isbn=978-0-7234-3541-9&uniqId=230100505-57. Accessed April 21, 2011.
- Hay RJ, et al. Onychomycosis: A proposed revision of the clinical classification. Journal of the American Academy of Dermatology. 2011. In press. http://www.sciencedirect.com/science?_ob=ArticleListURL&_method=list&_ArticleListID=1761598027&_sort=r&_st=13&view=c&_acct=C000010878&_version=1&_urlVersion=0&_userid=130561&md5=e8df8bcde3b532684246542bf6609d1a&searchtype=a. Accessed May 5, 2011.
- Baran R. The nail in the elderly. Clinics in Dermatology. 2011;29:54.
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