Nail fungus – also called onychomycosis (on-ih-koh-my-KOH-sis) and tinea unguium – is a common medical condition that impacts fingernails and toenails. Nail fungus typically begins as a yellow or white spot underneath the tip of a fingernail or toenail, which then spreads deeper into the nail bed.1

As the fungus spreads beneath the surface of the nail, the infection may cause the nail to appear discolored, to thicken or even crumble. And although it typically doesn’t affect every nail on a hand or foot, nail fungus can affect several nails at the same time.1

What causes nail fungus?1

Fungal infections of the nail are typically caused by a dermatophyte fungus, although yeasts and molds can also cause nail fungal infections. Nail fungus is more common in toenails than fingernails because toenails are often confined in a warm, dark, moist environment – inside a shoe and / or sock overnight shipping cialis. Additionally, toes typically have less blood flow than fingers, which makes it harder for the body’s immune system to identify and fight the infection.

What should I do if I think I have nail fungus?1

Left untreated, a severe fungal infection of the nail can cause pain, and may result in permanent nail damage. Additionally, nail fungus may spread to other areas of your body’s skin, especially if your immune system is suppressed by medication, diabetes or other conditions.

Consult your physician immediately. Depending on your condition, your physician may recommend an over-the-counter fungus treatment. For more severe nail fungal infections, your physician may recommend a prescription strength treatment.



1 – Mayo Clinic (July 21, 2015). Definition [Diseases and Conditions: Nail fungus]. Retrieved November 3, 2015 from