Nipple discharge is any fluid that comes from the nipple. It may be yellow or white and quite liquid or thicker in consistency. The secretions may also take on the color of blood or appear like blood floating in mucus. In some cases, pain accompanies the leakage. Discharge from both nipples is more likely caused by a condition outside the breast, such as hormonal imbalances. On the other hand, discharge in one nipple suggests disease of the breast, such as infection or cancer.

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