An abscess is a localized collection of pus caused by an infection. An abscess in the groin can develop due to an infection in a hair follicle, sweat gland, or other skin structures in the groin area.

The abscess may present as back pain, pyrexia of unknown origin, groin pain that mimics a septic hip, increased frequency of micturition, or abdominal pain. Onset is usually subacute, and symptoms ...