Toe web infection (interdigital) is the most common type of athlete's foot. It usually occurs between the two smallest toes. This type of infection:
Often begins with skin that seems soft and moist and pale white.
May cause itching, burning, and a slight odor.
May get worse. The skin between the toes becomes scaly, peels, and cracks. If the infection becomes severe, a bacterial infection is usually present, which causes further skin breakdown and a foul odor.
May begin with minor irritation, dryness, itching, burning, or scaly skin.
Progresses to thickened, scaling, cracked, and peeling skin on the sole or heel. In severe cases, the toenails become infected and can thicken, crumble, and even fall out. For more information, see the topic Fungal Nail Infections.
May appear on the palm of the hand (symptoms commonly affect one hand and both feet).
Usually begins with a sudden outbreak of fluid-filled blisters under the skin. The blisters most often develop on the skin of the instep but may also develop between the toes, on the heel, or on the sole or top of the foot.
Sometimes occurs again after the first infection. Infections may occur in the same area or in another area such as the arms, chest, or fingers. You may have scaly skin between eruptions.
May also be accompanied by a bacterial infection.
Athlete's foot is sometimes confused with pitted keratolysis. In this health problem, the skin looks like a "moist honeycomb." It most often occurs where the foot carries weight, such as on the heel and the ball of the foot. Symptoms include feet that are very sweaty and smell bad.