Toenail fungus is typically caused by dermatophytes, a type of fungus that thrives in warm, moist environments such as sweaty shoes and locker rooms. The infection can start as a small white or yellow spot under the tip of the toenail and gradually spread deeper into the nail. If left untreated, it can lead to nail discoloration, thickening, and even crumbling at the edges. https://zanaquick.com/collections/frontpage