If you have inflammation of the breast, you can have blood tests done to see if your white blood cells are elevated. If the nipple is overflowing, a blood draw can be done for a female hormone series to see if the prolactin is elevated. If it is a malignant tumor review, a blood draw should be done for tumor series, including CEA, CA-125, CA-153, to see if there is any elevation, mainly to see if there is any possibility of recurrence of the malignant tumor. Because different diseases, the blood test done is not very the same, you must pay attention to which aspect of the disease to see which test to do.