Athlete's foot is a common fungal infection that affects the skin on the feet, particularly between the toes. It is caused by fungi known as dermatophytes, which thrive in warm, moist environments. Symptoms often include itching, burning, and peeling skin, and it can sometimes lead to blisters or sores. The infection is contagious and can spread through direct contact or by sharing contaminated items, such as towels or shoes. Maintaining good foot hygiene, keeping feet dry, and wearing breathable footwear can help prevent athlete's foot. Treatment typically involves antifungal creams or medications.