The cause of chest pain from eating is firstly considered to be caused by inflammation of the esophagus. Mostly due to the usual inattentive diet, overeating or eating too much coarse and hard, spicy food, or eating too fast, etc., resulting in damage to the esophageal mucosa, which in turn causes esophagitis, and when eating, due to food irritation, which in turn causes pain in the chest. Chest pain caused by esophageal inflammation can be relieved by taking medication to protect the esophageal mucosa and to promote digestion, as the upper gastrointestinal barium meal or gastroscopy can reveal defects in the esophageal mucosa. The second consideration is that it is caused by a strain of the chest muscles, which is mostly caused by sudden force or trauma. When eating, the swallowing action involves the contraction of chest muscles, resulting in pain in the chest.