What Are the Causes of Black Stool Color?
An unusual color of stool can be alarming, but it is not always a cause for concern. If fecal matter is dark black, tarry or bloody, especially on a recurrent basis, medical treatment is necessary. The University of Maryland Medical Center (UMM) explains that passing black stools can be due to an issue that exists anywhere within the entire digestive system. The digestive system includes everything from the mouth to the anus.
