Hi, Thanks everyone for your advice. She went to the doctor and the doctor ordered a mamogram (mammogram). The result of mamogram (mammogram) shows nothing. The doctor is ordering for biopsy. My sister is scaring now and trying to avoid it, I think she does not want to face it now and running away from it. Since biopsy is an injurey to the tissues, can this cause infection leading to cancer or other side effects? If the mamogram (mammogram) does not show anything what can be the cause of this continuous bleeding? If Mamgram does not show anything and the doctor is suggesting biopsy, how does the doctor knows from which part of the breast he or she should perform the biopsy, because they dont see any mass to point at and bleading is coming only from one duct of the nipple? How do they know which part of the breast might be the initiation of cancer? should a head to toe scan be performed? Can the bleeding be caused by cancer from another part of her body?