Patients eating watermelon abdominal pain may be caused by stomach cold, indigestion and other physiological factors, may also be caused by gastric ulcer and other pathologic factors, should be based on different causes to take different treatments. 1. Stomach cold: when the patient ate too much chilled watermelon, it will lead to stomach cold, easy to appear abdominal pain symptoms, the patient can keep the abdomen warm, use hot water bags, warm babies and other hot compresses on the abdomen, can be very good to relieve the symptoms. At the same time, avoid eating cold stimulating food. 2. Indigestion: when patients with indigestion eat too much watermelon, gastrointestinal dysfunction, abdominal pain may occur at the same time, it is best to stop eating watermelon, you can use drugs such as: bifidobacteria, lactobacillus and other probiotic preparations to adjust the intestinal flora, multi-enzyme tablets to help digestion. 3. Gastric ulcers: patients with gastric ulcers, watermelon may stimulate the mucous membrane at the ulcer, which may easily lead to abdominal pain, at this time, patients can use drugs to protect the gastrointestinal mucosa for treatment, such as: aluminum thioglycollate, bismuth pectin, magnesium aluminum carbonate and other drugs, which can form a protective layer in the gastrointestinal mucous membrane; if accompanied by Helicobacter pylori infection, the need to use amoxicillin + Clarithromycin + bismuth pectin + omeprazole four anti-infectives Treatment. Drugs need to be used under the guidance of a doctor.