A supernumerary nipple (also known as a third nipple, triple nipple, thripple, accessory nipple, polythelia or polymastia) is an additional nipple occurring in mammals, including humans. Often mistaken for moles, supernumerary nipples are diagnosed at a rate of 1 in 18 humans.
Presentation
The nipples appear along the two vertical "milk lines", which start in the armpit on each side, run down through the typical nipples and end at the groin. They are classified into eight levels of completeness from a simple patch of hair to a milk-bearing breast in miniature. [2][3]
Polythelia refers to the presence of an additional nipple alone while polymastia denotes the much rarer presence of additional mammary glands.
Although usually presenting on the milk line, pseudomamma can appear as far away as the foot.
A possible relationship with mitral valve prolapse has been proposed.[5]
Known examples
- Anne Boleyn, second wife to Henry VIII of England, and mother of Elizabeth I, is said have had a third nipple or even a third breast. This may well have been a slanderous rumour, as in Tudor times these "malformations" were considered to be a sign of the person having been a witch. The circumstances of her marriage to the king, who had divorced his first wife, made her a controversial figure.[9]
References
External links
See also
- Accessory breast, a condition where an entire additional breast is present rather than simply an additional nipple
|
