Cellulitis is an acute spreading infection of the skin and subcutaneous tissues. It can occur anywhere in the body, the lower leg is the most common site. This guide is for healthcare professionals to aid in the wound and skin care of a patient with cellulitis, not the medical management. Cellulitis typically only occurs in one leg, it is unlikely to be cellulitis if both legs are red and inflamed. The inflammation may have a border that can be clearly outlined and may have blistering or even superficial bleeding into the blisters, which if left untreated can cause ulceration.
Additional resources:
- Legs Matter: Cellulitis.
- NHS Inform: Cellulitis.
- BMJ Best Practice: Cellulitis and erysipelas.

