Chest pressure pain may be caused by sternal inflammation, chest trauma, gastric ulcer and other reasons. 1. Inflammation of sternum: local inflammation occurs in the sternum area due to bacterial infection, and the inflammation will stimulate the sternal tissues to cause pain, and there will be sternal pain when pressed. 2. Chest trauma: the chest suffers from external attack can lead to chest soft tissue and muscle injury, or even sternal fracture, which causes chest pain from fracture and soft tissue contusion, and the pain will be aggravated when pressing on the chest. 3. Gastric ulcer: Gastric ulcer is caused by more secretion of gastric acid, which corrodes the stomach wall and causes pain. The anatomical position of the stomach is located in the left side of the lower part of the raphe, and it can be caused by pressing pain in the left side of the lower part of the raphe, i.e., there is pain when pressing on the chest in the lower part of the chest. Chest pressure pain may also have other reasons, should go to the hospital in a timely manner, improve the examination, clear the cause of the disease to give targeted treatment.