The subxiphoid process is the upper abdomen of a person, and the main organs in this area include the following: first, the stomach and duodenum, which are important organs for human digestion. When gastritis and gastric ulcers occur, there is pain below the subxiphoid process, which can be reflected to pain in the back. It can be accompanied by nausea, vomiting, acid reflux, belching, etc. Secondly, the left lower edge of the liver, the left edge of the liver is also located below the saber process. When there is a disease of the liver, there will also be pain under the saber or right lower abdomen; third, the pancreas, which is located deep in the stomach, when there is inflammation or an occupying tumor in the pancreas, there will also be pain under the saber. If there is pain in the subxiphoid process, it can also be a reflex pain of heart disease. Early cardiac examination should be performed to rule out whether the discomfort in the subxiphoid process is caused by heart attack or angina.