A couple days after giving birth, a woman in Portugal told her doctors that she'd begun to develop pain in her right armpit.
According to Sky News, when the doctors examined her they found a "round, firm" mass which surprisingly "released a white discharge when pressed" according to a new report in the New England Journal of Medicine.
She was diagnosed with polymastia, "a condition in which accessory breast tissue develops along the former embryonic mammary ridge”. Only 2-6% of women are born with this.
In rare cases, additional breast tissue can even appear with “supernumerary nipples” , but even without a nipple it’s possible to discharge milk from the accessory breast tissue.
(Pictures courtesy of Sky News)