What is the pain in the middle of the chest

The pain in the middle of the chest indicates pain under the glabella, which may be caused by diseases of the stomach, such as gastritis, bile reflux gastritis, or gallbladder stones, If bile is found in the stomach, it means gastritis with bile reflux or esophagitis; if there is inflammation or ulcer in the stomach mucosa, it means gastritis or gastric ulcer, which needs to be treated with oral medication. When gallbladder stones and inflammation of the gallbladder are present, sometimes there is also pain under the glabella, which many patients mistake for gastritis, and hepatobiliary ultrasonography is performed.