Cellulitis is an infection of the skin that spreads, sometimes even under the skin.
Characterized by swelling and tenderness, the condition is usually caused by a streptococcal infection or staphylococcal infection of a wound. Other causes may include human or animal bites, or injuries that occur in water. Cellulitis most often affects the legs. The first sign is usually a small injury or infection between the toes. The following are the most common symptoms of cellulitis.