Is black and yellow stool mixed normally?

If the patient's stool is black and yellow mixed, accompanied by abdominal pain, abdominal distension, diarrhea, nausea, poor appetite, weight loss and other symptoms, it is considered abnormal, generally related to gastrointestinal bleeding.

If the patient's symptoms last for a long time, it is necessary to go to the gastroenterology department of the hospital in time for routine stool examination and imaging examination to confirm the diagnosis.