Gallbladder and stomach are both organs of the digestive system. The gallbladder is usually located in the right upper abdomen; the stomach is usually located in the upper abdomen to the left of center. 1. Location of the gallbladder: Under normal circumstances, the gallbladder of most people is located in the right upper abdomen, in the gallbladder fossa of the right lobe of the liver, which is closely connected with the liver. The gallbladder is projected on the right side of the body at the intersection of the outer edge of the rectus abdominis muscle and the inner edge of the rectus abdominis muscle, that is, the intersection of the right side of the lower ribs and the rectus abdominis muscle. In a very small number of mirror images, the gallbladder is found in the left upper abdomen and is projected on the left side of the body in the line between the left nipple and the edge of the left costal arch downwards. 2. The location of the stomach: the stomach is generally located in the upper abdomen in the left part of the center. The position of the stomach has a great deal to do with the degree of filling of the stomach and the size of the individual. Under normal conditions, the stomach is projected below the xiphoid process and to the left of the center of the epigastrium. When the stomach is moderately full, a small portion of it is in the epigastrium and most of it is in the left quarter rib area. The position of the stomach is a little lower than normal in long, thin people. If there is a suspicion of stomach or gallbladder disease, the patient should consult the doctor in time, complete the relevant examinations, make a clear diagnosis, and then take the appropriate treatment plan.