Macromastia is not a disease caused by a single factor; it is believed to involve multiple contributing factors such as the growth process, pregnancy and childbirth, endocrine environment, and constitutional factors.
In most cases, it is understood that breast enlargement progresses not because tumorous changes exist within the breast tissue itself, but because the mammary glands and fatty tissue react excessively to physiological hormonal stimulation.
This page classifies the causes of Macromastia and organizes the mechanisms of onset for each from a medical perspective.
Adolescent Macromastia is a type characterized by rapid and marked enlargement of the breasts during puberty. Adolescence is a period of significant changes in sex hormone secretion, including estrogen. It is thought that breast tissue is susceptible to these hormonal changes, contributing to the onset of the condition. Blood hormone levels do not necessarily show abnormally high values; differences in tissue sensitivity to hormones are considered a key factor.
