There are many reasons stool could appear black, this can be caused as a result of iron supplements or even Oreos. This is especially true for people who have had ostomy surgery or a colectomy, because food is not being digested as fully as it is in people who have not had any abdominal surgery.
Here are some fast fact you need to know about Black Stool.
• Most cases of black stools are caused from eating black foods or iron supplements.
• Black Stool can also be caused by caused as a result of bleeding Ulcer. This is the most common cause of Black Stool.
• Problem from the upper digestive tract can cause Black stools by blood.
• Blood in the stool can be detected through a stool test.