Benign Growths & Cysts
Lipoma
WHAT IS IT
A benign lump of fatty tissue
HOW COMMON
Very common
CONTAGIOUS?
No — you cannot catch it or spread it
CURABLE?
Benign; removable if bothersome
What Is It?
A lipoma is a soft, benign lump made of fat cells that sits just under the skin. It feels rubbery and moves easily when pressed, and grows slowly. Lipomas are harmless and very common, most often on the shoulders, back, neck, arms, and thighs.
Signs & Symptoms
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A soft, rubbery lump under the skin
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Moves easily when pressed
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Grows slowly and is usually painless
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Common on shoulders, back, neck, arms, thighs
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Skin over the lump looks normal
Why Does It Happen?
Lipomas are a benign overgrowth of fat cells. The exact cause isn't known, but they often run in families and can appear anywhere with fatty tissue. They are NOT cancerous, and having one does not raise your cancer risk. Minor injury may bring some to attention, but generally they arise on their own. They are NOT contagious.
Treatment Options
Lipomas are harmless and usually need no treatment. Removal is considered if a lipoma is painful, growing, or bothersome, or when the diagnosis is uncertain.
OBSERVATION
The usual approach for a soft, stable, painless lump.
SURGICAL REMOVAL
Excision if it's painful, growing, or bothersome.
CONFIRM IF UNSURE
Imaging or biopsy if a lump is firm, fixed, or growing fast.
REASSURANCE
Lipomas are benign and don't turn into cancer.
Tips for Managing It at Home
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Note any lump that grows quickly, becomes firm, or hurts
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Understand removal leaves a small scar
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Don't attempt to remove or drain it yourself
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Mention any family history of similar lumps
When to Call Your Provider
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A lump grows rapidly, becomes hard, or feels fixed
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The lump becomes painful
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You're unsure whether a lump is a lipoma
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You'd like it removed
Sources & further reading
The information in this handout is based on general dermatology guidance from the reputable organizations below. These links are provided for patients who wish to read more from trusted sources.
DermNet. Lipoma. https://dermnetnz.org/topics/lipoma
MSD/Merck Manual. Lipomas. https://www.msdmanuals.com/professional/dermatologic-disorders/benign-skin-tumors-growths-and-vascular-lesions/lipomas
Cleveland Clinic. Lipoma. https://my.clevelandclinic.org/health/diseases/15008-lipoma
This handout is for general education and does not replace advice from your own provider. Always follow your provider’s specific instructions.
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