Chest pain is most often considered pleurisy, angina pectoris, breast hyperplasia, gastroesophageal reflux disease and so on. 1. Pleurisy: inflammation occurring in the pleural cavity, cough, fever, chest pain and other manifestations, often accompanied by pleural effusion. 2. Angina pectoris: caused by narrowing or occlusion of coronary artery lumen, manifested as chest pain, chest tightness, shortness of breath, etc., which can be triggered by emotional excitement or exertion. 3. Mammary hyperplasia: caused by hormonal imbalance in women’s body, often manifested as chest swelling and pain, and the pain is mostly related to menstrual cycle. 4. Gastroesophageal Reflux Disease (GERD): abnormal function of the lower esophageal sphincter causes acid reflux, which is manifested as acid reflux, heartburn, chest pain and other symptoms. Chest pain can also be seen in other diseases, it is recommended that patients seek timely medical treatment to avoid delaying the condition.