Symptom: Nipple discharge

    Nipple discharge refers to any fluid that seeps out of the nipple of the breast.

    Nipple discharge in a woman who's not pregnant or breast-feeding isn't necessarily abnormal, but it should be evaluated by a doctor. Nipple discharge in a man under any circumstances could be a problem and needs further evaluation.

    One or both breasts may produce a nipple discharge, either spontaneously or when you squeeze your nipples or breasts. A nipple discharge may look milky, or it may be clear, yellow, green, brown or bloody. Nonmilk discharge comes out of your breasts through the same nipple openings that carry milk. The consistency of nipple discharge can vary — it may be thick and sticky or thin and watery.

    Nipple discharge

    A papilloma is a noncancerous (benign) tumor that can be associated with bloody discharge. It appears spontaneously and involves a single duct. Although the bloody discharge may resolve on its own, this situation requires evaluation with an ultrasound of the area behind the nipple and areola. If the ultrasound shows a lesion, you may need a biopsy to confirm that it's a papilloma.

    Most often, nipple discharge stems from a benign condition. However, breast cancer is a possibility, especially if:

    Possible causes of nipple discharge include:

    1. Abscess
    2. Breast cancer
    3. Breast infection
    4. Ductal carcinoma in situ (DCIS)
    5. Excessive breast stimulation
    6. Fibroadenoma
    7. Fibrocystic breasts
    8. Galactorrhea
    9. Hormone imbalance
    10. Injury or trauma to the breast
    11. Intraductal papilloma
    12. Mammary duct ectasia
    13. Medication use
    14. Menstrual cycle hormone changes
    15. Paget's disease of the breast
    16. Pregnancy and breast-feeding
    17. Prolactinoma

    Causes shown here are commonly associated with this symptom. Work with your doctor or other health care professional for an accurate diagnosis.

    Source: mayoclinic.org

    If you're still having menstrual periods and your nipple discharge doesn't resolve on its own after your next menstrual cycle, make an appointment with your doctor to have it evaluated. However, if you've completed menopause and you're experiencing a spontaneous nipple discharge that involves one breast and a single duct, see your doctor right away for further evaluation.

    In the meantime, take care to avoid nipple stimulation — including frequent checks for discharge — because stimulation actually makes the discharge continue.

    Source: mayoclinic.org

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