Nail fungus, also known as onychomycosis, is a common fungal infection that affects the nails, primarily toenails but can also occur in fingernails. It is caused by various types of fungi, including dermatophytes, yeasts, and molds. Nail fungus can lead to discoloration, thickening, and crumbling of the nails, causing discomfort and cosmetic concerns. Symptoms: Discolored nails: Infected...