Lactation and breastfeeding are normal parts of the pregnancy experience. However, milky nipple discharge that occurs outside of that process can be confusing and frustrating. Galactorrhea is not a disease but an unusual condition that can affect anyone at any time. For some, there is no known cause and it eventually clears up on its own. In other cases, galactorrhea is an indicator of a more serious underlying condition.
Prolactin is a hormone that stimulates milk production. It is produced by the pituitary gland and facilitates an infant's suckling process after birth. If the new mother purposely agitates her breasts to draw the milk down, this excessive stimulation can cause leaking. Rough fabrics, self-examination, and sex can also lead to galactorrhea.
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