Health LibrarySymptomsNipple Discharge: Symptoms, Causes, and Home Treatment
Symptoms

Nipple Discharge: Symptoms, Causes, and Home Treatment

Why it happens and when nipple discharge should be evaluated by a clinician.

Medically reviewed
Updated 2026

Types of discharge

Discharge can be milky, clear, yellow, green, or bloody. Cause varies widely — from hormonal changes to duct issues.

See a doctor if

Discharge is bloody, one-sided, spontaneous (without squeezing), or associated with a lump. These warrant an in-person exam and possible imaging.

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Educational content only

Milli's Health Library provides general educational information reviewed against peer-reviewed medical sources. It is not a diagnosis, prescription, or medical advice. Milli does not recommend medications. Always consult a licensed doctor before starting, stopping or changing any treatment.

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