The majority of the liver (right lobe of the liver) is located in the right quaternary ribcage (right upper abdomen) and epigastrium of the body, and a small portion (left lobe of the liver) is located in the left quaternary ribcage area (left upper abdomen). The liver is close to the diaphragm upward, surrounded by the right lung and heart, and its upper border is marked by the 5th rib on the level of the right midclavicular line; downward, it is connected to the stomach, duodenum, and the right curvature of the colon (the hepatic curvature); and dorsally, it is adjacent to the right kidney and adrenal glands. The gross morphology of the liver resembles an irregular wedge, with the right side rounded and thick and the left side sharp and narrow. When positioned on the surface of the body, the upper border of the liver and the diaphragm are basically in the same position, about the fifth intercostal space on the right midclavicular line. The liver has a certain degree of mobility in the body, and can move up and down to a certain extent with the change of body position and the activity of the diaphragm during breathing. The lower border of the liver generally does not exceed the edge of the ribs. Under normal circumstances, the edge of the liver cannot be touched under the rib margin, sometimes the lower edge of the left lobe of the liver can be touched under the xiphoid process, but it is generally not more than 3cm, and it can be touched under the rib margin and the xiphoid process of the pediatric patients, which is a normal physiological phenomenon. If there is any discomfort, it is recommended to consult a doctor in time.