Oxytocin
Oxytocin
Oxytocin is a hormone released from the pituitary gland in the brain. During pregnancy, oxytocin causes labor contractions to begin. Oxytocin also is released when a woman’s breasts are stimulated by suckling or pumping, causing milk to move from the ducts and out the tiny holes in the nipple (let-down reflex). In the first few days after delivery, oxytocin also causes uterine contractions that help shrink the uterus back to its prepregnancy size.
Once breast-feeding is established, your body may release oxytocin when you hear a baby cry, think of your baby, or have sexual intercourse. When this occurs, your breasts may leak milk whether or not you are actively breast-feeding or pumping.
Your body may not release oxytocin when you are anxious, embarrassed, or distracted. You may need to breast-feed in a relaxing, quiet, familiar, private place for let-down to occur.
Credits
| Author | Kathe Gallagher, MSW |
| Editor | Kathleen M. Ariss, MS |
| Associate Editor | Denele Ivins |
| Associate Editor | Pat Truman, MATC |
| Primary Medical Reviewer | Kathleen Romito, MD - Family Medicine |
| Specialist Medical Reviewer | Joy Melnikow, MD, MPH - Family Medicine |
| Last Updated | May 10, 2007 |
| Last updated: | May 10, 2007 |
|---|---|
| Author: | Kathe Gallagher, MSW |
| Reviewed By: | Kathleen Romito, MD - Family Medicine, Joy Melnikow, MD, MPH - Family Medicine |
| Editors: | Kathleen M. Ariss, MS, Pat Truman, MATC |
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