Nail fungus, or onychomycosis, is a condition that occurs when a microscopic fungus enters either a fingernail or toenail. Fungal infections occur in toenails more often than in fingernails.

Medically reviewed by Danielle McNeil, D.P.MThere are four main types of fungal toenail infections that differ by the ...

Medically reviewed by Katlein Franca, MD Nail psoriasis and onychomycosis (nail fungus) are both conditions that can discolor ...

Why toenail fungus (onychomycosis) is more than a cosmetic issue—and how it affects nail bed health and daily life. The top causes of recurring fungal nail infections and why conventional ...

Athlete's foot diagnosis Not all itchy, scaly feet are caused by a fungus. Your doctor may scrape off a bit of skin and look at it under a microscope to check for a different condition.

Classic symptoms include: Doctors can often diagnose athlete’s foot based on appearance. Sometimes, they may scrape scaling skin and inspect it under a microscope for evidence of fungus.

On a microscopic level ... on this list can technically treat jock itch (as well as athlete’s foot, ringworm and other fungal rashes), we found that this one is especially good at treating ...

The KOH destroys normal cells and leaves the fungal cells untouched so they are easy to see under a microscope. Athlete’s foot can often be treated with over-the-counter (OTC) topical antifungal ...

Why toenail fungus (onychomycosis) is more than a cosmetic issue—and how it affects nail bed health and daily life. The top causes of recurring fungal nail infections and why conventional treatments ...

Candidiasis, scalp ringworm, jock itch, and athlete’s foot are all ... products can make the fungus harder to identify when a healthcare professional views it under a microscope.