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.
Ichthyosis vulgaris slows your skin's natural shedding process. This causes chronic, excessive buildup of the protein in the upper layer of the skin (keratin). Symptoms include: 1  Dry, scaly skin.2  Tile-like, small scales.3  Scales colored white, dirty gray or brown â with darker-colored scales typically on darker skin.chthyosis vulgaris slows your skin's natural shedding process. This causes chronic, excessive buildup of the protein in the upper layer of the skin (keratin). Symptoms include: 1  Dry, scaly skin. 2  Tile-like, small scales. 3  Scales colored white, dirty gray or brown â with darker-colored scales typically on darker skin.