Boil

Definition

A boil, also known as a furuncle, is a painful, pus-filled infection of a hair follicle caused primarily by Staphylococcus aureus bacteria. Boils are characterized by redness, swelling, and the accumulation of pus.

5 Must Know Facts For Your Next Test

1. Boils are often caused by Staphylococcus aureus, which is part of the normal microbiota but can become pathogenic.
2. The infection typically starts in a hair follicle or oil gland and can spread to nearby skin tissue.
3. Boils can occur anywhere on the body but are most common on the face, neck, armpits, shoulders, and buttocks.
4. Recurrent boils may indicate an underlying condition such as diabetes or a compromised immune system.
5. Treatment usually involves drainage of the abscess and antibiotics for severe cases.

Related terms

Carbuncle: A cluster of connected boils that form a larger infected area.

Abscess:

A collection of pus that has built up within the tissue due to an infection.

Cellulitis:

A bacterial skin infection that can occur in association with or following a boil.