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Breastfeeding Magazine

Milk Blister


If you see a small white spot on your breast it may be a milk blister. It is important to learn about what they are, what causes them and how to you can treat them.

What a They Are

These blisters (or a blocked nipple pore) are usually just “milk under your skin.” You can get this when a small piece of your skin grows over a milk pore or duct and causes your milk to back up and blister. It is usually a painful white, clear or yellow dot on your nipple. Pain either seems to be right at the blister or slightly behind it.
Breastfeeding motherThese blisters usually are painful and sore for a few days and then simply disappear by themselves.

On the other hand, there may be an obstruction within the milk duct (instead of just skin over the breast milk pores.) It is sometimes just caused by a small dried up piece of breast milk or some solidified milk fat. Many times this happens at the same time as a plugged duct or reoccurring mastitis.

Common Causes of Milk Blisters

Yeast can be responsible for a blocked nipple pore. Typically, if your child or you have thrush you may see tiny white spots in your child’s mouth or on your nipple. However, your breasts can get a larger white spot on the nipple due to milk ducts that are blocked.

If you have multiple blisters at the same time…thrush is probably the cause. If you feel a burning sensation as you nurse, this is also a sign that thrush might be an issue.

How Do To Treat It

Treating a milk blister involves the following steps for several days and up to a few weeks:

  1. Before breastfeeding, apply a warm moist towel.
  2. If possible, try to gently remove skin from the duct.
  3. Breastfeed often or use a good quality breast pump often to keep the ducts clear and the milk flowing.
  4. Consult a doctor to get needed medication (if needed) to heal completely.

Where Would You Like to Go Next?

Want to read some great Breastfeeding Stories from moms like you or Submit Your Own Breastfeeding Story?

….or want to see some great breastfeeding advocacy shirts that we found?

…or to see our breastfeeding supplies Top 10 list?

….find tips, share and help other moms in the Mom Chat Breastfeeding Forum?

….return to the breastfeeding problems and special care page?

“Thanks for the breastfeeding tips!”






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