Three weeks ago I began having a small, spontaneous bloody discharge about every other day from one breast only. A mammogram and ultrasound were performed and only a water-filled cyst was found and not diagnosed as the problem. Three days ago I underwent a breast biopsy and the surgeon took out a milk duct. He and my family physician believe the problem may be an intraductal papilloma - a small tumor in the milk duct. Most are benign. I am awaiting an answer right now from the pathologist. I am 45 years old and am in menopause. Anyone else had such a thing? I understand they are mostly non-cancerous.