Toenail fungus, also known as toenail fungus, is a type of fungal infection that affects the nail area, including those on the feet. It is mainly caused by various types of fungi called dermatophytes, but other types of fungi such as yeast and molds can also be responsible. These types of fungi thrive in warm, moist conditions. https://podiatryabc.com/o-is-for-onychomycosis/