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.
Urinary Tract Infections. UTIs are one of the common causes of confusion in the elderly; in fact, this is often the first thing doctors test for when treating an older patient that presents with confusion. Symptoms include: 1  Confusion, unusual behavior, or sudden change in mental status. 2  Sudden inability to perform tasks they can typically perform with ease. 3  Urine that appears cloudy, red, bright pink, or brownish in color. 4  Strong, persistent urge to urinate and/or passing frequent, small amounts of urine.