Dear toni40: There are several possible explanations for lumps and even bloody discharge. However, these symptoms warrant further investigation. You should consider seeing a breast specialist (often affiliated with large academic medical centers) to further evaluate your symptoms and recommend what additional testing may be appropriate.
I strongly recomend you to go for the further tests. Recently on Apr 15th my sister is dignosed with the breast cancer(DICS) and she had microcalcification all over her breast and a nipple discharge. Very rarly this will lead to cancer and unfortunatly my sister is one of them.Mastectomy has done for her and waithing for the remaining results for further treatment.I"M NOT SCARING YOU. I'm just warning you not to take it easy and don't be panic.Just do what you have to do with out delay.