Supernumerary breasts

Get in touch with RARE Concierge.

Contact RARE Concierge

Supernumerary breasts

Synonyms: Accessory breasts | Polymastia

A rare breast malformation characterized by the presence of accessory breasts with a complete ductal system areola and nipple in addition to two normal breasts. The accessory breast tissue mostly lies along the milk lines. It is often not recognized until puberty when it begins to respond to regular hormonal fluctuations and may develop the same changes as normal breasts throughout life.

Data from Orphanet are used to provide information on a disease's name, synonym(s), and overview.

Reference: Access aggregated data from Orphanet at Orphadata.

Orphadata: Free access data from Orphanet. © INSERM 1999. Available on Data version May 2024

Newly diagnosed with
Supernumerary breasts?

Our RARE Concierge Services Guides are available to assist you by providing information, resources and connections as you navigate your rare disease journey.

Get Concierge Help

Clinical Trials

For a list of clinical trials in this disease area, please click here.