The liver and gallbladder of the human body are located in the area below the rib cage in the right upper abdomen of a person, and the two are close together. The liver is among the largest glands in the human body, with a thin-looking left end and a more rounded outer edge at the right end. The upper part of the liver and gallbladder is close to the diaphragm, near the human heart and the right side of the lungs, and the lower part is close to the human duodenum, stomach and the right curvature of the colon. It is also close to the adrenal glands and the right side of the kidneys, and the gallbladder is located in the fossa of the gallbladder below the liver. In case of disease in this area, pain in the right quadri-rib area, and in severe cases, pain in the right scapular area and even in the back, may occur. If malignant tumors appear, they may manifest as nausea, vomiting, and pain in the upper abdomen, or a feeling of distension in the abdomen. Once the pain in these areas occurs, you should be alert to the possibility of liver and biliary diseases and need to seek medical treatment in time.