Cellulitis is usually an infection of the skin (left). But if the condition is severe or left untreated, as in the photo on the right, it can spread into tissue under the skin, the lymph nodes and the bloodstream.

Cellulitis is a common infection of the skin and the soft tissues underneath. Learn about cellulitis causes, symptoms, treatment, and prevention.

Cellulitis is most often a clinical diagnosis, readily identified in many people by history and physical examination alone, with rapidly spreading areas of cutaneous swelling, redness, and heat, occasionally associated with inflammation of regional lymph nodes.

Cellulitis is a potentially serious infection in the deeper layers of your skin. Find out about the symptoms, causes, treatments and possible complications.

Learn about cellulitis symptoms, causes, and treatment options to prevent serious complications. Act quickly if you notice swelling, redness, or heat.

Cellulitis is a bacterial infection that enters your skin and tissue through a wound. Treatment includes antibiotics. You should recover in seven to 10 days.

It causes redness, swelling, and pain in the infected area. If untreated, cellulitis can spread and cause serious health problems. Healthcare providers diagnose cellulitis by how it looks and treat it with antibiotics. Speak to a healthcare provider if you have concerns about cellulitis.

Cellulitis is a common bacterial infection that won't go away on its own. Find out when to worry about your cellulitis symptoms so you can get prompt treatment.

Cellulitis is a common bacterial skin infection. Learn more about its symptoms, how it's treated, and how you can prevent it.

You should worry about cellulitis if you develop a fever or dark-colored skin. See pictures of cellulitis to help you identify when to seek emergency treatment.