However, there are other things that can cause a black toenail, including fungal or bacterial infections. Most cases of black toenails aren’t serious, but often require treatment. If you have ...

“Nail fungus ... black vertical streak on your toenaildon’t try a foot soak. In fact, people with diabetes should check in ...

Toenail fungus ... Why Traditional Treatments Often Fall Short Many sufferers try over-the-counter topical creams or messy home remedies like tea tree oil, bleach soaks, or vinegar baths.