Toenail fungus is caused by various types of fungi, including dermatophytes, yeasts, and molds. These microorganisms thrive in warm, moist environments such as shoes, locker rooms, and public showers. The infection usually begins as a white or yellow spot under the tip of the toenail and can progress deeper into the nail, causing thickening, crumbling, and discoloration. Left untreate... https://zanaquick.com/collections/frontpage