Thick yellow toenails are usually caused by a fungal infection called onychomycosis. This can be irritating or painful. It’s less common, but the infection can affect your fingernails as well. Thick ...

Thick, yellow, and brittle toenails are often caused by a fungal infection known as onychomycosis. This occurs when yeasts, moulds, or dermatophytes enter small cracks in the nail or surrounding skin, ...

A woman's big toe turned black and her toenail became bright yellow after being bitten by a toxic millipede that hid in her shoe before she went to work. Thassynara Vargas, 25, was left with a ...

Healthy nails are clear in color and smooth, without cracks, indentations, or ridges. Yellow toenails can be caused by aging, nail polish, or an infection. Read on to learn about the causes of yellow ...

Thick, yellow toenails left so long they split and crumble. Nails so misshapen they dig into the skin, causing infections. Or, in the most severe cases, curling into what we call ‘ram’s horns’ that ...

Common causes of yellow toenails include excessive nail polish use and fungal infections. However, yellow toenails can sometimes be a sign of a more serious underlying health condition, such as ...