Compare · Conditions

Lipoma vs Abscess

A benign lump formed from fat cells beneath the skin. A localised pocket of pus within or under the skin.

Research updated 2026-10-23
AI-generated educational illustration of Lipoma: 1. Lipoma — Card Image. Not a clinical photograph.AI-generated educational illustration: A small dome-shaped localized tender-looking red swollen bump on adult upper arm beneath intact skin; no incision or large open wound.
Key differencesWhat is it?What it looks likeDiagramsWhen it startsTriggersDaily CareTreatmentOutlookComplicationsWhen to get helpQuestions

Key differences

The same eight facts on every condition comparison.

Usual age
Adults
Any age
Where
Trunk, shoulders, arms
Armpits, groin, buttocks; anywhere
Main sign
Soft, rubbery, movable lump
A tender, swollen pocket of pus
Itch or pain
Painless
Painful
Contagious
No
The bacteria can spread
Long term
Harmless; grows slowly
Clears once drained
Scars
Removal leaves a scar
Can leave a small scar
Who gets it
Adults 40–60
Anyone; more with diabetes or friction

What is it?

Lipoma
Abscess
What is it?
  • What it is
    A benign lump formed from fat cells beneath the skin.
  • What it is
    A localised pocket of pus within or under the skin.

What it looks like

Lipoma

An upper arm with a smooth dome-shaped lump and no visible surface opening.

Lipoma The upper arm has a rounded bulge beneath an intact skin surface.

Abscess

An upper arm with a rounded red bump and a pale-yellow central point.

Abscess A red swelling rises above the surrounding upper-arm skin.

Skin tones
Lipoma on light skin.
Lipoma on medium skin.
Lipoma on brown skin.
Lipoma on deep skin.
a localized raised abscess on light skin.
a localized raised abscess on medium skin.
a localized raised abscess on brown skin.
a localized raised abscess on deep skin.
In the skin

Mature fat cells form a localized benign growth beneath the skin. The collection usually creates a soft lump rather than a change confined to the surface.

An infection can lead to a localized collection of pus within tissue. The surrounding inflammatory response creates a tender, swollen cavity rather than diffuse inflammation alone.

When it usually starts

010203040506070+

Lipoma. Most commonly recognised in adults.

Abscess. Can occur at any age.

Causes and triggers

Causes

A local collection of mature fat cells forms a benign tumour.

An infection can create a walled-off collection of pus.

Risk factors
Adult age, Family tendency in some people
Skin breaks, Bacterial colonisation, Diabetes or immune suppression
Trigger
● Lipoma
● Abscess
No established short-term flare trigger
Not a typical trigger
Not listed
Skin injury
Not listed
Can contribute
Friction
Not listed
Can contribute

Daily Care

Lipoma
Abscess
Daily care

Habits that help

  • Leave a stable, clinician-confirmed benign lesion alone
    It may not need treatment if it is comfortable and not changing.
  • Reduce rubbing from clothing, shaving or hair tools
    Repeated injury can make a harmless lesion sore or cause bleeding.
  • Notice meaningful changes without repeatedly squeezing it
    Arrange examination for rapid growth, persistent bleeding or a change in appearance.
  • Arrange review if a lump becomes painful, firm or fixed
    A presumed lipoma should not be repeatedly massaged or treated with fat-dissolving home remedies.

Avoid

  • Avoid: Cutting, burning, freezing or acid removal at home
    Home removal can cause infection, scarring and delay the correct diagnosis.

Habits that help

  • Keep the area gently clean and cover any drainage
    Use a clean non-stick dressing and replace it when wet, dirty or as instructed.
  • Wash hands before and after dressing changes
    Dispose of used dressings safely and clean surfaces contaminated by drainage.
  • Keep towels, washcloths and razors for your own use
    Launder items that touch the affected area and let them dry fully.
  • Reduce pressure and rubbing over the lump
    Choose loose clothing and avoid shaving across inflamed skin.
  • Follow the wound-care plan after professional drainage
    Keep dressing and follow-up appointments; do not remove packing unless told to do so.

Avoid

  • Avoid: Squeezing, lancing or piercing the lump at home
    This can spread infection; a collection of pus may need professional drainage.
  • Avoid: Delaying assessment for spreading redness, fever or worsening pain
    Home care does not replace drainage or antibiotics when they are needed.

Treatment differences

Evidence labels come from each condition’s own treatment list.

Treatment
● Lipoma
● Abscess
Prescription pills
None listed

Antibiotics

Listed

Spreading infection, systemic illness or individual risk factors may require antibiotics alongside source control.

Procedures

Excision

Listed

Pain, growth or diagnostic uncertainty may justify removal or tissue assessment.

Editorial illustration for Incision and Drainage, based on the entry’s treatment or equipment reference.

Incision and drainage

Listed

A clinician may need to drain a collection of pus; do not lance it at home.

Outlook

Long term

A confirmed lipoma is usually harmless and may remain stable or grow slowly. It can be removed if needed and recurrence after complete excision is uncommon; a rapidly changing or painful lump needs reassessment.

A skin abscess often improves after appropriate drainage; some also need antibiotics. It can recur if a contributor remains, and spreading redness, fever or worsening pain needs prompt review.

Complications

Possible complications

A secure diagnosis matters because other lesions can look similar.

Infection can spread to nearby skin or cause systemic illness.

When to get help

When to get help

Have a rapidly growing, deep, firm, fixed or painful lump assessed rather than assuming it is a lipoma.

Seek prompt care for a painful pus collection; fever, spreading swelling or feeling unwell increases urgency.

Common questions

Lipoma:What is Lipoma?

A benign lump formed from fat cells beneath the skin.

Lipoma:What can I do day to day?

Avoid picking or home removal. Protect exposed skin from the sun.

Lipoma:When should I get medical advice?

Have a rapidly growing, deep, firm, fixed or painful lump assessed rather than assuming it is a lipoma.

Abscess:What is Abscess?

A localised pocket of pus within or under the skin.

Abscess:What can I do day to day?

Keep the area clean and covered. Do not squeeze or lance it; do not share towels.

Abscess:When should I get medical advice?

Seek prompt care for a painful pus collection; fever, spreading swelling or feeling unwell increases urgency.

Sources

Sources and further reading

  1. Lipoma
  2. Abscess
Dermapedia on YouTube