The stomach is mainly located in the left upper abdomen, but the location of the stomach can vary considerably depending on body size, position, and degree of filling.
The stomach is a broad, crescent-shaped, intraperitoneal hollow organ that connects the esophagus to the upper intestine and the small intestine to the lower intestine. The position of the stomach varies according to the size of the person. The position of the stomach is higher in obese people and lower in thin people.
When the stomach empties, it is smaller than a fist, and after a meal, it can increase in size by more than ten times. As the stomach fills up, most of the stomach will be located in the upper left side of the abdomen, with a small portion located in the umbilicus.
The two ends of the stomach (cardia and pylorus) are relatively fixed in position, and the stomach is often palpated clinically by palpating the underside of the xiphoid process, which is the middle part of the anterior wall of the gastric pylorus and is directly adjacent to the anterior abdominal wall.