This week, in the American Journal of Pathology, two San Francisco doctors offer an unexpected reply: the clot forms as the result of a reaction between arterial blood and material from a diseased ...

An anal abscess, also known as a perianal or rectal abscess, occurs when a cavity in the anus becomes filled with pus. Symptoms may include pain, constipation, or fever. Treatment may include drainage ...

Cellulitis and skin abscesses are both due to bacterial infections. They may develop separately or together, and they need different treatments. Your skin is home to about 1,000 different species of ...