Origin of galactorrheagalacto- + -rrhea
- Excessive flow of milk from the breasts during lactation.
- Spontaneous milk flow not associated with childbirth or the nursing of an infant.
- Lactation (secretion of milk from nipples) unassociated with childbirth or nursing.
From Ancient Greek γάλακτος (galaktos, “milk”) + ῥέω (rheō, “flow”).