Eating red dragon fruit after the stool becomes red is generally a normal phenomenon, but can not be ruled out that the patient suffers from gastrointestinal bleeding, it is recommended to improve the stool routine examination, etc. If the patient’s stool becomes red after eating red dragon fruit, it will be excreted with the feces. Red stool is due to the natural pigment in dragon fruit, which can not be absorbed by the body, will be excreted with the feces after consumption, resulting in red stool, will also change the color of the patient’s urine. Stop eating dragon fruit 1~2 days later, the color of the stool will return to normal. If the patient is accompanied by nausea, vomiting, dizziness, panic and other symptoms, may be considered as gastrointestinal bleeding, it is recommended to go to the hospital for relevant examinations, if the diagnosis of gastrointestinal bleeding, it is necessary to carry out targeted treatment, and after the bleeding stops to follow the doctor’s advice before resuming diet. If other symptoms occur after eating red dragon fruit, please consult a doctor in time for targeted treatment.