Galactocele

What it is

A galactocele is a round, smooth pocket of trapped breast milk that forms a cyst. It happens when a milk duct gets blocked and milk builds up behind the blockage. They most often appear when you are breastfeeding or weaning.

How common it is

Galactoceles are not very common, but they are the most frequent harmless breast lump that happens during breastfeeding.

What you may notice

You might feel a smooth, soft lump that you can move under the skin. It is usually not painful, and it may seem to get bigger before nursing and smaller afterward.

What can contribute

Anything that blocks a milk duct, like a sudden change in your feeding schedule, can contribute to a galactocele forming. Having had breast surgery in the past can sometimes also be a factor.

How it is usually checked

Your provider will likely start with a physical exam of the lump. To see what's inside, they will probably suggest a breast ultrasound. In some cases, they may use a small needle to draw out some fluid, which will look milky and confirm it's a galactocele.

Does this change my long-term risk?

A galactocele is harmless and does not change your long-term breast health risk.

Comfort and everyday care

• Continue to breastfeed or pump, as keeping the milk flowing may help.
• Applying a warm compress to the area before nursing can sometimes provide comfort.
• Gently massaging the area may help, but be careful not to press too hard.
• Ensuring your bra fits well and is not too tight can help prevent blocked ducts.

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.