Research on IGT (also called breast hypoplasia and
tuberous breasts) and its effect on lactation is almost nonexistent, with the most widely quoted study cobbled together in 2000 by enterprising nurses and lactation consultants who assembled 33 breast - feeding women with breast characteristics that they suspected were linked to low milk production.
Called tubular (or
tuberous)
breast deformity in the plastic surgery literature, hypoplasia of the mammary gland (also called insufficient glandular tissue or IGT) was previously thought to be a simple issue of cosmetics — corrections addressed the appearance of a woman's
breasts, with little regard for their function.