Glossary

Term · Feeding Your Baby

hyperlactation

Also: oversupply, milk oversupply

Making more milk than a baby needs, which can cause fullness, leaking, forceful letdown, or a baby who gulps and chokes. Many mothers call it oversupply.

In plain words

Hyperlactation is milk production that runs higher than the baby needs. Mothers often call it oversupply. Breasts can feel very full, leak often, and let milk down with force. A baby may gulp, cough, pull off, or gain weight quickly. Some babies handle it well, and others need help staying on the breast. Oversupply is common in the first weeks, while supply is still being set. It can also follow a pumping routine that empties the breast more often than the baby does. Hyperlactation is linked to clogged ducts and , because a very full breast can be harder to drain. It is not a disease. Many mothers find that feeding positions and help from a make a difference.

The deeper version

Hyperlactation describes milk synthesis and storage that exceed infant demand. It produces high volume, fast flow, and in some infants a milk that is high in lactose relative to fat. Local feedback from residual milk regulates synthesis, so incomplete or very frequent emptying shifts output in either direction. Forceful , sometimes called hyperactive letdown reflex, can add gulping, choking, and colic-like fussiness. Clinical definitions are imprecise, and no validated diagnostic threshold exists. Hyperlactation is considered part of a spectrum that runs from fullness and to . The main controversy is whether interventions to reduce volume should start early or only after symptoms appear (Lawrence and Lawrence, Breastfeeding: A Guide for the Medical Profession, 8th edition).

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Sources

  • Lawrence RA, Lawrence RM — Breastfeeding: A Guide for the Medical Profession, 8th edition. Elsevier, 2016
  • La Leche League International — The Womanly Art of Breastfeeding, 8th edition

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