Fungal infection of fingernails/toenails
Caused mostly by dermatophytes but also yeasts and nondermatophyte molds
Toenails are more commonly affected than fingernails.
Dermatophytes: commonly preceded by dermatophyte infection at another site; 80% involve toenails, especially hallux; simultaneous infection of fingernails and toenails is rare. ...
Avoid factors that promote fungal growth (i.e., heat, moisture, occlusion, tight-fitting shoes).
Treat underlying disease risk factors.
Treat secondary infections.
Formation of a new fingernail takes 4 to 6 months, and a new toenail takes 12 to 18 months.
Cure defined as:
Clinical cure, 100% absence of clinical signs, and/or
B35.1 Tinea unguium
B37.2 Candidiasis of skin and nail
110.1 Dermatophytosis of nail
112.3 Candidiasis of skin and nails
414941008 onychomycosis (disorder)
403059006 Onychomycosis of t...
Psoriasis and chronic nail trauma are commonly mistaken for fungal infection.
Diagnosis should be based on both clinical and mycologic laboratory evidence.
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