I'm having blood discharge from my nipple. Gynecologic oncology or breast specialist?

Breast surgeon. Bloody nipple discharge can be due to a variety of different reasons and complicated to go into details here. I would recommend seeing a breast surgeon.

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I'm having blood discharge from my nipple. What kind of doctor is a breast specialist?

Breast discharge. You may ultimately need a surgeon for biopsy, but it would be best to start with your primary care physician -- who might be a family physician or internist. Either can explore your history, examine you carefully, and make helpful recommendations. Best wishes to you. Read more...