Hidden pain in the right upper abdomen should be alerted to be caused by liver and gallbladder diseases, gastrointestinal diseases and other diseases, such as hepatitis, cholecystitis, gastric ulcer, pleurisy and so on. 1. Hepatobiliary diseases: patients with hepatitis, cholecystitis, cirrhosis, biliary stones, biliary obstruction, hepatic tuberculosis, hepatic abscess, hepatocellular carcinoma or gallbladder cancer in early stage and other hepatic and biliary pathologies may have vague pain in the right upper abdomen. Some patients may also have other symptoms such as jaundice, nausea and vomiting, and loss of appetite. 2. Gastrointestinal diseases: common diseases include gastric ulcer, acute and chronic gastritis, enteritis, colitis, gastric cancer and so on. In addition to vague pain in the right upper abdomen, it may be accompanied by other symptoms such as fever, diarrhea or constipation, abdominal distension, emaciation and so on. 3. Other diseases: such as pleurisy, herpes zoster, rib fracture, pneumothorax, costochondritis, etc. may also present with vague pain in the upper right abdomen. There are many causes of right upper abdominal pain, patients are advised to consult a doctor for timely examination, and follow the doctor’s instructions for treatment after clarifying the disease in order to control the condition, alleviate the discomfort, and promote the recovery of the body’s health.