What is a boil vs. abscess?

A boil and an abscess are both skin infections, but an abscess is generally a more severe and extensive infection than a boil.

Key Differences Between Boils and Abscesses:

Feature	Boil	Abscess
Size	Usually smaller.	Typically larger.
Appearance	Tender, red spot, lump, or pustule.	Painful boil that becomes hot, red, and swollen. The center may feel soft.
Severity	Generally less severe and often resolves on its own or with basic home treatment.	More severe infection requiring medical attention, especially if large, painful, or accompanied by fever.
Symptoms	Localized tenderness and redness.	Significant pain, heat, swelling, and potential systemic symptoms like fever or chills.
Treatment	Warm compresses, keeping the area clean. May resolve without specific medical intervention.	Often requires drainage by a healthcare professional and may need antibiotics, especially if accompanied by fever or signs of spreading infection.

Boils: Boils often start as small, red, painful bumps that develop around a hair follicle. They are caused by a bacterial infection, usually Staphylococcus aureus. They fill with pus over time and may eventually rupture and drain.
Abscesses: Abscesses are collections of pus surrounded by inflamed tissue. They can occur anywhere in the body but are common on the skin. They often arise from bacterial infections and may be deeper and more extensive than boils. An abscess usually causes more significant pain and swelling, and the surrounding skin is often hot to the touch. Abscesses can also be accompanied by systemic symptoms like fever and chills, indicating the infection is spreading.

You should seek medical attention for a boil or abscess if: