Nipple discharge is rarely a sign of breast cancer. But it might be a sign of an underlying condition that requires treatment.
If you're still having menstrual periods and your nipple discharge doesn't resolve on its own after your next menstrual cycle and occurs spontaneously, make an appointment with your health care provider to have it evaluated.
If you're past menopause and you have a spontaneous nipple discharge from a single duct in one breast only, see your provider right away for evaluation.
In the meantime, take care to avoid nipple stimulation — including frequent checks for discharge — because stimulation can result in persistent nipple discharge.
Dec. 04, 2021
- Understanding breast changes: A health guide for women. National Cancer Institute. https://www.cancer.gov/publications/patient-education/understanding-breast-changes. Accessed Oct. 10, 2019.
- Golshan M. Nipple discharge. https://www.uptodate.com/contents/search. Accessed Oct. 10, 2019.
- Lee SJ, et al. ACR Appropriateness Criteria evaluation of nipple discharge. Journal of the American College of Radiology. 2017;14:S138.
- Nipple discharge. Merck Manual Professional Version. https://www.merckmanuals.com/professional/gynecology-and-obstetrics/breast-disorders/nipple-discharge. Accessed Oct. 10, 2019.
- AskMayoExpert. Nipple discharge. Mayo Clinic; 2019.
- Pruthi S (expert opinion). Mayo Clinic. Oct. 10, 2019.
- American College of Obstetricians and Gynecologists. Practice Bulletin No. 164: Diagnosis and management of benign breast disorders. Obstetrics & Gynecology. 2016; doi:10.1097/AOG.0000000000001482.
- Galactorrhea. Merck Manual Professional Version. https://www.merckmanuals.com/professional/endocrine-and-metabolic-disorders/pituitary-disorders/galactorrhea#v980911. Accessed Oct. 9, 2019.
- Paget disease of the breast. National Cancer Institute. https://www.cancer.gov/types/breast/paget-breast-fact-sheet. Accessed Oct. 10, 2019.
- Dixon JM. Nonlactational mastitis. https://www.uptodate.com/contents/search. Accessed Oct. 10, 2019.