Someone asked me a question about white spots on the nail - not your "normal" Leukonychia - but the kind that is under polish and is almost powdery.
Keratin granulations are the result of excessive dehydration of the keratin molecules that have turned into a chalk like substance on your nail surface; they are completely harmless and are easily corrected with a few weeks of moisturizing treatments. This is the most likely reason for the spots, especially if they appear after removing nail polish.
However, as nail techs, we all also need to be aware of white superficial onychomycosis.
This type of infection is the second most common type of infection you can get that commonly affects the toenails and not the fingernails. The main cause of this type of nail fungus infection is the dermatophyte, Trichophyton mentagrophytes.
This fungus has the unique feature to develop on the top layers of the nail, and eventually spreads on the entire nail-plate.
Initially, tiny white patches appear on the surface of the nail-plate. As the fungus spreads, the nails may dry out and the surface of the nails flake and crumble.
The fungus feeds on the nail protein, keratin, to obtain its nutrients, which further weakens the nail-plate, and makes it distorted. White superficial onychomycosis is spread it is spread like any fungus - unsanitary tools and files for one - but also locker rooms and other places people go barefoot . it's interesting to note that not everyone exposed develops it though, it's a very complex thingOf course, we are not licensed to diagnose things like this so if there is ANY question, your client should be sent to a doctor.