Diseases
onychomycosis
For healthcare professionals — reference only. This page is a brief summary, not medical advice and not a substitute for official labeling or clinical judgement. Always verify before prescribing or dispensing.
Overview
Nail fungus is a common infection of the nail. It begins as a white or yellow-brown spot under the tip of your fingernail or toenail. As the fungal infection goes deeper, the nail may discolor, thicken and crumble at the edge. Nail fungus can affect several nails.
Symptoms
- nails that are: thickened discolored brittle, crumbly or ragged
- misshapen nails,
- nails separated from the nail bed
Causes
- nail fungus is caused by various fungal organisms (fungi). the most common is a type called dermatophyte. yeast, bacteria and molds also can cause nail infections.
Risk factors
- older age
- wearing shoes that make your feet sweat heavily
- having had athlete's foot in the past
Diagnosis
- medical history.
- signs and symptoms
Medicines used
Frequently asked questions
What is onychomycosis?
Nail fungus is a common infection of the nail. It begins as a white or yellow-brown spot under the tip of your fingernail or toenail. As the fungal infection goes deeper, the nail may discolor, thicken and crumble at the edge. Nail fungus can affect several nails.
What are the symptoms of onychomycosis?
nails that are: thickened discolored brittle, crumbly or ragged, misshapen nails,, nails separated from the nail bed
What causes onychomycosis?
nail fungus is caused by various fungal organisms (fungi). the most common is a type called dermatophyte. yeast, bacteria and molds also can cause nail infections.
Which medicines are used for onychomycosis?
ciclopirox, itraconazole, terbinafine
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