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Milky nipple discharge without breastfeeding

Also called: Galactorrhea

Milky nipple discharge when not breastfeeding (galactorrhea) can come from medicines, thyroid problems, or a pituitary tumor. It should be checked.

Common causesMedicines, high prolactin
Usually serious?Usually not
Get checked ifAlways
If you think it's an emergency, call 911.Thinking about suicide? Call or text 988.

Overview

High prolactin is a common cause.

Headaches or vision changes need prompt care.

When to get medical care

Call 911Not an emergency.
Get care todayDischarge with headaches or vision changes.
See a doctor soonMilky discharge.

Causes

Causes include medicines, hypothyroidism, and pituitary tumors.

OwieClear has pages on 2 conditions that can cause milky nipple discharge without breastfeeding. Each shows how soon to get care.

Common causes

What you can do at home

  • Don't squeeze.

Medicines

Depends on cause.

At the doctor

Blood tests.

Questions you may be asked

  • Medicines
  • Periods

The exam

A breast exam.

Tests

  • Prolactin
  • Thyroid
  • MRI

Prevention

Get checked.

  • Review medicines

Check your symptoms

Most symptoms have more than one possible cause. The symptom checker looks at all of your symptoms together, plus your age, and shows how soon to get care.

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Sources

Last updated 2026-11-13.