Lipoma

What it is

A lipoma is a round or oval lump made of normal fat cells that have grown together. These lumps are harmless and can appear anywhere on your body, including inside the breast. They usually feel soft, rubbery, and you can often move them slightly under your skin.

How common it is

Lipomas are very common and can happen at any age. They are one of the most frequent types of soft tissue growths.

What you may notice

You might feel a soft, smooth lump in your breast that moves easily when you press on it. Most lipomas are painless, but they can sometimes cause discomfort if they grow large or press on a nerve.

What can contribute

The exact cause of lipomas is not well understood. Sometimes they run in families, but often there is no clear reason why one develops.

How it is usually checked

Your provider will likely start with a physical exam of the lump. They may also suggest imaging, like an ultrasound or mammogram, to get a better look. In some cases, a small sample called a biopsy may be taken to confirm it is a lipoma.

Does this change my long-term risk?

Having a lipoma is not a health risk. It does not change your long-term breast health risk.

Comfort and everyday care

• Most lipomas do not need any treatment and can be safely left alone if they are not bothering you.
• Wearing a well-fitting, supportive bra may help reduce any awareness of the lump during daily activities.
• Some women find that maintaining a stable weight through a balanced diet and regular exercise supports their overall breast health.

These statements have not been evaluated by the Food and Drug Administration. This product is not intended to diagnose, treat, cure, or prevent any disease.