What is spontaneous nipple discharge?

Spontaneous nipple discharge is fluid leakage from one or both breasts that occurs without any stimulation, such as by squeezing the nipple. Spontaneous nipple discharge may signal a medical problem, particularly if:
  • It occurs only in one breast.
  • The discharge is bloody or pink, or gray or otherwise discolored.
  • It occurs in a woman age 40 or older.
  • It occurs in a woman who is neither pregnant nor nursing. 
  • It is accompanied by a lump that can be felt, a retracted nipple, or breast skin that is dimpled, swollen and/or red.
  • It occurs in a boy or a man.
Common causes of spontaneous nipple discharge are breast lumpiness (fibrocystic breasts), infection, dilated milk ducts or a benign tumor in a milk duct. Breast cancer causes fewer than 10 percent of cases of spontaneous nipple discharge.

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Women's Health

Women's Health

Did you know that women are more likely to seek medical care than men? Sexual health needs, like pregnancy and contraception, often necessitate early visits to a doctor. But as we age, various health issues affect women more than ...

men, including depression, weight problems, and certain types of arthritis.In order to maintain your health and wellness, make sure you get an annual checkup.

Important: This content reflects information from various individuals and organizations and may offer alternative or opposing points of view. It should not be used for medical advice, diagnosis or treatment. As always, you should consult with your healthcare provider about your specific health needs.