Hidden pain in the right middle abdomen may be caused by physiological factors, gastroenteritis, cirrhosis of the liver and so on. 1. Physiological factors: after strenuous exercise, overeating, eating too much food that is easy to produce gas, or drinking a lot of alcohol, it may cause pain in the right middle abdomen. 2. Gastroenteritis: vague pain in the right middle abdomen may be caused by gastroenteritis, which is usually caused by bacterial, fungal, viral infections, etc. The most typical pain is the rebound pain, pressure pain, paroxysmal pain and other symptoms. 3. Cirrhosis: If hepatitis virus infection, alcoholic liver disease and other factors cause liver enlargement, thus affecting the pain nerve on the liver peritoneum, so that the patient appeared in the right middle abdominal pain, accompanied by fatigue, loss of appetite and other symptoms. Patients with right abdominal pain should actively seek medical attention to clarify the cause of the disease and standardize the treatment, so as not to delay the condition.