Dragon fruit is rich in anthocyanins, as well as significant antioxidants, which can prevent heart disease, prevent hardening of the blood vessels and stroke with certain effects, especially the red flesh variety, which has a high nutritional value. Dragon fruit also has the function of clearing heat and lowering fire, improving constipation. As dragon fruit is a cold fruit, if the spleen and stomach is cold, diabetes, the body belongs to the easy cold body, it is not easy to eat dragon fruit, easy to cause diarrhea. Eat dragon fruit caused by diarrhea, if the stomach slight pain or no pain, you can not use medicine. Properly drink warm water or drink millet porridge, regulate the gastrointestinal function, defecation can return to normal. If the diarrhea is severe with watery and thin stools, you can choose medication, such as montelukast, metronidazole, omeprazole, haloperidol, etc., to inhibit intestinal pathogenic bacteria, antibacterial and anti-inflammatory, antispasmodic and analgesic. If the number of bowel movements is excessive, prompt medical attention is recommended.