Fingernail onychomycosis

Fingernail onychomycosis is a superficial fungal infection localized specifically to the nail unit of the fingers, involving the nail plate, nail bed, or nail matrix Pathophysiologically, fungal invasion and keratin degradation lead to hallmark clinical manifestations, including subungual hyperkeratosis, nail plate thickening, chromonychia (whitish, yellowish, or brownish discoloration), brittleness, and onycholysis

Fingernail onychomycosis is a superficial fungal infection localized specifically to the nail unit of the fingers, involving the nail plate, nail bed, or nail matrix While dermatophytes such as *Trichophyton rubrum* remain leading pathogens, fingernail involvement exhibits a distinctly higher prevalence of *Candida* species and non-dermatophyte molds compared to toenail infections, frequently affecting individuals with occupational wet-work exposure, underlying immunosuppression, or diabetes

While dermatophytes such as *Trichophyton rubrum* remain leading pathogens, fingernail involvement exhibits a distinctly higher prevalence of *Candida* species and non-dermatophyte molds compared to toenail infections, frequently affecting individuals with occupational wet-work exposure, underlying immunosuppression, or diabetes

While dermatophytes such as *Trichophyton rubrum* remain leading pathogens, fingernail involvement exhibits a distinctly higher prevalence of *Candida* species and non-dermatophyte molds compared to toenail infections, frequently affecting individuals with occupational wet-work exposure, underlying immunosuppression, or diabetes

Pathophysiologically, fungal invasion and keratin degradation lead to hallmark clinical manifestations, including subungual hyperkeratosis, nail plate thickening, chromonychia (whitish, yellowish, or brownish discoloration), brittleness, and onycholysis