“…2) Bloody nipple discharge during lactation occurs as a result of several factors such as cracked nipples, mastitis, trauma, or intraductal papilloma. 3,4) However, a rare physiological condition, known as "rusty-pipe syndrome", can cause painless bloody nipple discharge in pregnant and post-partum women. 2,3,5) Rusty pipe syndrome is a breastfeeding condition in which the color of the breast milk looks pink, orange, brown, or rust-colored, similar to dirty water coming out of an old rusty pipe, and hence, the name of the syndrome.…”