Toenail fungus, medically known as onychomycosis, is a common disease caused by microscopic fungi. Since these fungi like warm, moist environments, your toenails are an ideal target. This is particularly true if you have little nail injuries, sweat a lot, or spend a lot of time in wet environments. Even while it can seem like a little issue, untreated toenail fungus can develop, spread to other nails, and even cause skin diseases.
