This document provides an overview of abscesses including their definition, causes, classification, symptoms, diagnosis, and treatment. An abscess is a collection of pus caused by bacterial infection or irritation. Abscesses are classified as acute or chronic and superficial or deep. Symptoms depend on the location but often include swelling and pain. Treatment involves draining the abscess after preparing the site and managing pain. Antibiotics and anti-inflammatories may also be given and the cavity cleaned and packed.