Large breasts (mammary hypertrophy, macromastia or gigantomastia) can be unilateral or bilateral. In many cases, there is a symmetrical increase in size, i.e. both breasts grow to the same extent.
Macromastia is diagnosed when the expected resection weight of 500g per breast is exceeded in a greatly enlarged mammary gland. The height and weight of the affected person must always be taken into account. For smaller and slimmer women, even a lower breast weight can be a great burden. There are no exact guide values for macromastia, as it always depends on the physical characteristics of the patient.