Bloody nipple discharge in a three-month-old formula-fed infant

Abstract

Bloody nipple discharge in infancy and childhood is a rare clinical finding. Most pediatric cases of bloody nipple discharge have been attributed to mammary duct ectasia. We present the case of a three-month-old exclusively formula-fed male infant with bilateral bloody nipple discharge as a result of mammary duct ectasia. With bilateral spontaneous resolution occurring after a total period of five months, this report highlights the self-limiting nature of bloody nipple discharge resulting from mammary duct ectasia in infancy. • Bloody nipple discharge in infancy is extremely rare, with few cases being described in the literature. • The cases available suggest the primary cause of bloody nipple discharge in infancy to be mammary duct ectasia. • Bloody nipple discharge from mammary duct ectasia appears to be self-limiting in infants and can be conservatively managed.