Abdominal pain with nausea can be caused by physiological reasons, such as improper diet; it may also be acute gastroenteritis, acute appendicitis, acute cholecystitis and other diseases. 1. Physiological causes: such as eating too much spicy stimulation, cold, greasy food, resulting in gastrointestinal tract stimulation, may have abdominal pain with nausea symptoms. 2. Acute gastroenteritis: often due to dietary impurity leading to gastrointestinal tract bacterial infection caused by gastrointestinal tract inflammation, gastrointestinal mucosal edema, congestion, causing stomach pain, nausea, diarrhea and so on. 3. Acute appendicitis: inflammation of the appendix caused by bacterial infection, its typical symptoms are metastatic right lower abdominal pain, which may be accompanied by nausea, vomiting, fever, abdominal distension and other symptoms. 4. Acute cholecystitis: Inflammation of the gallbladder caused by bacterial infection and bile duct obstruction, the common symptom is pain in the right upper abdomen after a full meal or eating greasy food, which can be colicky pain or persistent hidden pain, which can be accompanied by nausea, vomiting, fever and other symptoms, which can be manifested as stomach pain with nausea. There are many reasons for hidden stomach pain with nausea, and patients are advised to consult a doctor in time to identify the cause and follow the doctor’s instructions for further treatment.