A tarry stool with a few red blood cells suggests the presence of red blood cells in the feces and may be associated with gastrointestinal bleeding.
Since there are no red blood cells in normal feces and the normal color of feces is yellowish-brown, tarry stool with red blood cells is not normal.
When there is tarry stool with red blood cells, it suggests that it is related to gastrointestinal bleeding, such as peptic ulcer, acute gastritis, enteritis, gastrointestinal tract tumors, etc. Generally, upper gastrointestinal tract bleeding can lead to tarry stool after contact with gastric juice, and the presence of red blood cells under the microscope is often related to lower gastrointestinal tract bleeding.
Therefore, when tarry stools with red blood cells are present, the cause needs to be clarified under the guidance of a doctor for active treatment.