Athlete's foot is a common fungal infection that affects the skin on the feet. It is caused by a group of fungi known as dermatophytes, which thrive in warm, moist environments such as locker rooms, showers, and swimming pools. The infection typically starts between the toes and can spread to other parts of the foot. Symptoms of athlete's foot include itching, burning, and stinging sensations, as well as redness, scaling, and cracking of the skin. In severe cases, blisters and sores may develop. The condition is contagious and can be spread through direct contact with an infected person or by touching contaminated surfaces. Preventive measures include keeping the feet clean and dry, wearing breathable footwear, and avoiding walking barefoot in public areas. Treatment usually involves the use of over-the-counter antifungal creams, powders, or sprays, although more severe cases may require prescription medication.