The stool is black all the time. Is it tarry stool?

Stool has been black is not tarry stool needs to be analyzed according to the specific circumstances.

If stool has been black, and soft texture, rich luster, it is tarry stool. Usually due to peptic ulcer, gastric cancer and other diseases, resulting in upper gastrointestinal bleeding. Secondly, if stool has been black, but slightly hard texture, no luster, it is not tarry stool, just ordinary black stool, may and eat black food, take iron and other reasons.

If the patient symptoms last for a long time, can not be relieved, it is recommended to seek medical advice in time for blood routine, stool routine, gastroscopy, ultrasound and other examinations to clarify the cause, and active intervention.