Since 50 percent of the total nail disorders worldwide is caused by fungal infection, every onychomycosis diagnosis should be confirmed by a test using potassium hydroxide (KOH) because skin disorders such as contact dermatitis, nail bed tumor, psoriasis, yellow nail syndrome and lichen planus can be erroneously diagnosed as onychomycosis
Onychomycosis has 5 types:
1. The most common type is Distal Subungual Onychomycosis which can develop in both toenails and fingernails. The surface of the nails or the nail bed is the part that is mostly affected and spreads to the underside parts of the nails.
|Distal subungual onychomycosis|
|White superficial onychomycosis|
|Proximal subungual onychomycosis|
|Total dystrophic onychomycosis|