Why does my breast milk sometimes look blue? Is there any color breast milk I should worry about?
—Smurf mom
To begin with, blue: This most commonly happens in the morning, or at the start of a nursing session, when your breasts are fuller and the milk has a lower fat composition. Because the milk is thinner, the refracted light off it makes it appear blue. It’s fine! There is nothing to worry about. You’re not a Smurf.
There are many other normal colors. White, obviously. Yellow (more fat). Green (if you eat green foods or algae supplements).
The two colors you want to pay attention to are red and black. Red or pink breast milk is generally a sign of blood, or possibly eating too many beets. This is unlikely to be a serious issue, but it is one you want to raise to your provider.
Black breast milk is rare, and typically reflects a reaction to medication, but it is something you do not want to ignore. If you see this, call your doctor.
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