Cellulitis is an infection caused by bacteria getting into the deeper layers of your skin.
The main symptom of cellulitis is a red, painful, swollen area of skin.
Cellulitis usually needs to be treated with antibiotics. It can be serious if it's not treated quickly.
Things that increase your risk of cellulitis include poor circulation, inactivity and a weak immune system.
Page last reviewed: 17/01/2018
Next review due: 17/01/2021