When Maria Delgado noticed a dark streak under her big toenail, she assumed it was from dropping her gym bag on her foot. Six months later, that seemingly innocent mark led to a diagnosis that saved ...

While most people are familiar with the appearance of healthy toenails — smooth, light pink, and evenly colored — changes in ...

Treatment for thick toenails typically includes treating the underlying cause, which can include things like mechanical stress (such as poorly fitting shoes), fungal infection, or an autoimmune ...