The causes of vague pain in the lower right side of the rib cage are usually the following three: 1, liver and biliary problems, the liver is located on the right side of the abdomen, if the pain is severe and accompanied by nausea and vomiting, it may be hepatitis or gallbladder stones, cholecystitis. 2, if there is pain on local pressure, it may be due to soft tissue injury, it may also be costochondritis or intercostal neuralgia, or there may be radiating pain. 3, urinary system problems, such as ureteral stones, kidney stones, etc., manifesting as right-sided abdominal cramps, but often favoring the right side of the lumbar abdomen. When this happens, it is recommended to go to a regular hospital for professional examination, to do abdominal ultrasound or CT to clarify the cause, then carry out the corresponding treatment, and follow medical advice to take medication, while maintaining a light diet, pay attention to rest, and keep a happy mood.