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Why does breestfeeding cause anovulation?

By Zaira Salvador.
Last Update: 02/12/2019

During lactation, the hormone prolactin is increased due to the stimulation of the breast by the baby sucking on the nipple.

This high level of prolactin, in addition to stimulating milk production, inhibits the hypothalamus and prevents the secretion of GnRH (gonadotropin-releasing hormone). As a result, the entire hypothalamus-pituitary-ovarian axis is blocked and the woman will not have ovulation or menstruation until she finishes exclusive breastfeeding.

Suggested for you: What Is Anovulation? – Symptoms & Treatment.

 Zaira Salvador
Zaira Salvador
BSc, MSc
Embryologist
Bachelor's Degree in Biotechnology from the Technical University of Valencia (UPV). Biotechnology Degree from the National University of Ireland en Galway (NUIG) and embryologist specializing in Assisted Reproduction, with a Master's Degree in Biotechnology of Human Reproduction from the University of Valencia (UV) and the Valencian Infertility Institute (IVI)
License: 3185-CV
Embryologist. Bachelor's Degree in Biotechnology from the Technical University of Valencia (UPV). Biotechnology Degree from the National University of Ireland en Galway (NUIG) and embryologist specializing in Assisted Reproduction, with a Master's Degree in Biotechnology of Human Reproduction from the University of Valencia (UV) and the Valencian Infertility Institute (IVI) License: 3185-CV.
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