Tags: Disease.
Accessory breasts also known as polymastia supernumerary breasts multiple breast syndrome or mammae erraticae is the condition of having an additional breast. Extra breasts may appear with or without nipples or areolae. It is a condition and a form of atavism which is most prevalent in male humans and often goes untreated as it is mostly harmless. In recent years many affected women have had a plastic surgery operation to remove the additional breasts for purely aesthetic reasons.