Black bowel movement ten days after appendicitis surgery may be related to bleeding around the surgical incision, chemical tract stress bleeding and so on. Black stool after appendicitis surgery is usually due to bleeding around the surgical incision, the outflow of blood will generally be stored and adhered to the intestinal tract, and because the postoperative intestinal peristalsis has not fully recovered resulting in slower intestinal peristalsis, the stagnant blood will not be drained at once during defecation, the blood is adhered to the feces, which will be manifested as black stools. If the black stool lasts for a long time after the operation, you need to consult a doctor to check the wound healing. Stress bleeding in the digestive tract is more common in the stomach. After appendicitis surgery, the mind may be highly stressed, which can lead to bleeding in the digestive tract under this stressful situation, usually the amount of bleeding is larger and faster, and symptoms such as vomiting blood or having blood in the stool may be present at the same time as the black stool. If you find black stool after appendicitis surgery, you should seek medical treatment in time and under the guidance of the doctor. Pay attention to rest on weekdays, quit smoking and drinking, and keep a regular routine.