Thank you for your question. White milky fluid from your nipples/breasts can result from taking certain medicines for birth control or mood problems, from being pregnant, or recently being pregnant. Less common, fluid from your breasts could be from low thyroid hormone levels, a hormone imbalance, or very rarely from a small benign (not cancerous) pituitary tumor. If you have milky discharge from your breasts and you continue to squeeze your nipple, the discharge will often continue for months. Your health care provider (HCP) will likely tell you not to squeeze your nipples (to check if the discharge is still present). If your body is making too much of the hormone “prolactin” the fluid is typically milky and white. The medical name for this symptom is called “galactorrhea.” Reasons for yellow, green or blood-tinged breast discharge could mean a breast infection, a breast duct is dilated (widened), or trauma. Scant yellow discharge can be normal. Anytime you have any sort of breast discharge, fluid or blood that comes from your breast(s), you should make an appointment with your HCP.
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