Gastric ultrasound can detect some organic lesions of the stomach with obvious manifestations, such as advanced gastric cancer and gastric mesenchymal tumor. Gastric ultrasound is the use of ultrasonic examination equipment to examine the stomach, when the stomach wall or the body of the stomach occurs obvious and other organic lesions, such as huge ulcers in the stomach wall, larger gastric cancer, gastric mesenchymal tumors, etc., in the ultrasound image can be corresponding to the thickening of the gastric wall, the gastric wall defect, the gastric wall around the mass-like manifestations, but also can be found in the body of the stomach around the enlarged lymph nodes. Gastric ultrasound has a lower resolution and its use has certain limitations. It cannot accurately find gastric mucosal congestion, edema, erosion, etc., and cannot confirm the diagnosis of gastritis. It is also more difficult to detect early lung cancer and small gastric ulcers. If gastric discomfort occurs, it is recommended to seek medical attention, and a definitive diagnosis often requires a combination of gastroscopy and other tests, and treatment under the guidance of a specialized doctor.