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Rusty pipe syndrome (RPS) is a benign, self-limiting condition characterized by bloody milk secretion, and is primarily seen among primiparous women. This case report highlights the clinical presentation of a 31-year-old primiparous woman with bloody milk secretion from gestational week 31. This persisted throughout pregnancy until seven days after birth. RPS should be considered in pregnant women with painless bilateral bloody milk secretion during pregnancy and/or the early days post-partum. The milk can safely be provided to the infant, and RPS is not an indication for formula feeding.