A painful bacterial infection of the skin or tissue with the ability to spread throughout the body including the lymphatic channels. Symptoms of the affected area include inflammation, redness, tenderness, and warmth. Cellulitis most often occurs in the lower body and is typically the result of streptococcal or staphylococcal infections. People at risk for Cellulitis are those experiencing diabetes mellitus, malnutrition, lymphedema, or the injection of drugs.