An abscess is a localized pocket of pus within tissue. It often develops when the immune system responds to infection and walls off inflammatory material.
What pus contains
Pus may contain white blood cells, microorganisms, damaged tissue, fluid, and inflammatory debris.
Where abscesses occur
They can develop in the skin, around teeth, near the anus, in the breast, or deep within organs and body cavities.
Common skin signs
- A painful or tender lump
- Redness and warmth
- Swelling or firmness
- A soft or fluid-like center
- Visible pus or drainage
Why location matters
A small superficial abscess and a deep internal abscess are not evaluated or treated the same way. Facial, dental, neck, eye-area, internal, and neurologic symptoms deserve particular caution.
Frequently asked questions
What is an abscess?
An abscess is a localized pocket of pus that forms in tissue, commonly because the body is responding to infection.
Can I squeeze or cut an abscess myself?
No. Squeezing, puncturing, or cutting it can worsen infection, damage tissue, or spread germs.
Do all abscesses need antibiotics?
No. Treatment depends on location, size, severity, surrounding infection, health risks, and whether drainage is needed.
Do abscesses need drainage?
Many do, especially when pus is trapped. A healthcare professional should decide how and when drainage is performed.
Can a warm compress help?
For some small superficial skin abscesses, a warm moist compress may support natural drainage while you monitor symptoms and seek advice.
Is an abscess contagious?
The abscess itself is not passed like a cold, but bacteria in pus or drainage can spread through contact or shared items.
When is an abscess urgent?
Seek prompt care for fever, rapidly spreading redness, severe pain, facial or eye involvement, immune suppression, or feeling very unwell.
Can an abscess come back?
Yes. Recurrence may reflect persistent bacteria, an underlying cyst, hidradenitis, a fistula, diabetes, or another condition.
How long does healing take?
Healing varies with size, location, treatment, health, and wound care. Follow the clinician’s instructions and attend follow-up.
Is this website medical advice?
No. It provides general education and cannot diagnose, examine, or treat any individual.