In the case of hematochezia, the blood may coat the stool, be mixed in with the stool, or even be passed by itself without any stool at all. Potential causes of black colored stools include: 1  acidified blood (blood from higher in the digestive tract)  iron supplements or foods high in iron.
Sign in to receive recommendations (Learn more) DCIS generally has no signs or symptoms. A small number of people may have a lump in the breast or some discharge coming out of the nipple. According to the National Cancer Institute, about 80% of DCIS cases are found by mammography. Last modified on February 18, 2016 at 11:21 AM.
Pagetâs disease, a rare form of breast cancer in the nipple; Ductal carcinoma in situ (DCIS). This is what most people mean when they talk about stage 0 breast cancer. The abnormal cells are still in your milk ducts and havenât affected the fatty tissue that makes up most of your breast. Thereâs no known cause, and most people donât have any symptoms, though you may notice a lump or bloody discharge from your nipple.