There is a very good article in Current Issues in Clinical Lactation,
2000 on this issue, including classification of severity, and likelihood
of making a full milk supply.

Important things you should know:
Moms with mammary glandular hypoplasia have a smaller milk factory.
They may be able to nurse frequently enough to supply the baby with
enough milk, but they may not.

Moms with hypoplasia that are able to make enough milk may take up to 4
weeks to build up to a full supply.  So encourage mom to keep working on
supply.  It seems that even a small factory can be expanded in response
to increased demand.

Watch the baby for signs of inadequate intake, and complement at the
breast if additional calories are necessary.  Educate the mother about
stool and urine output and other signs that the baby is getting enough
milk.  Educate the mom about choices for complementary foods (banked
human milk, artificial baby milk).

Explore mom's medical history.  A history of hormonal problems
(hypothyroidism, Polycystic ovary syndrome, hyperprolactinemia) can have
a negative impact on breast development and subsequent milk supply.
There was also a case report in JHL of progesterone treaments during
pregnancy helping to ameliorate mammary hypoplasia.
--
Catherine Watson Genna, IBCLC  New York City  mailto:[log in to unmask]

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