24-Hour Milk Production Rate (Liquid Volume)

Why This Test Is Done

Doctors may order this test if you’re experiencing concerns about insufficient milk production, such as low milk supply, pain during breastfeeding, or difficulty meeting your baby’s feeding needs. It can also be used to monitor lactation status in clinical settings or research studies.

What to Expect Before the Test

You’ll typically wear a special device (like a lactation meter or scale) around your breasts for 24 hours. The device measures how much milk you produce at each feeding. You’ll need to record all feedings, including pumped or expressed milk, and any supplements given to your baby.

During the Test

The test involves tracking every milk production event—whether through direct breastfeeding, manual expression, or pumping. The device or method used may vary, but accuracy depends on consistent recording of all milk output and feeding sessions.

What the Results Mean

Results are expressed in liters or milliliters of milk produced over 24 hours. While specific reference ranges aren’t universally standardized, lower-than-expected production may indicate hormonal imbalances, medical conditions, or other factors affecting lactation.