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Transitional Milk

Transitional milk is high-protein breast milk that a woman produces about 3 to 6 days after her baby is born. A woman's breasts are stimulated to produce transitional milk by breast-feeding her baby regularly, about every 2 hours.

The breasts make transitional milk after a period of producing colostrum, which is a thick, sticky, yellowish liquid that contains important nutrients and antibodies that a baby needs right after birth. After a mother's transitional milk comes in, she typically notices a big change in the volume and type of milk and an increase in the weight and size of her breasts.

Mature milk, which has more fat and less protein than transitional milk, starts being produced about 10 to 15 days after the baby is born.

By Healthwise Staff
Primary Medical Reviewer Sarah Marshall, MD - Family Medicine
Specialist Medical Reviewer Kirtly Jones, MD - Obstetrics and Gynecology
Current as of April 12, 2013

WebMD Medical Reference from Healthwise

Last Updated: April 12, 2013
This information is not intended to replace the advice of a doctor. Healthwise disclaims any liability for the decisions you make based on this information.