The main organs under the right rib cage are the liver and gallbladder. If you have pain under the right rib cage, you should have an abdominal ultrasound to diagnose whether it is a disease of the liver or gallbladder. The pain is followed by indigestion, sometimes accompanied by nausea and vomiting. In the case of gallbladder stones, severe colic can occur, with the patient sweating profusely and in unbearable pain, sometimes rolling on the ground in pain, indicating that the pain is particularly intense. There is also liver tumor. After liver tumor occurs, pain will also appear under the right rib cage, and the pain is more persistent, which is difficult to be relieved by general painkillers.