Thanks for the follow up. Indeed, one of the differential diagnosis of nipple secretion outside of the breastfeeding
period are pituitary tumors
, specifically prolactinomas
. The secretion is classically milky and fluid, just like milk, which gives to the term galactorrhea
or milky secretion. The description you give is not consistent fortunately, but you want to ask your doctor to check a prolactin level just to be complete.
Wish you the very best,
Dr Brenes-Salazar MD
Mayo Clinic MN