Anterior chest tightness may be caused by some physiological reasons, or it may be the symptomatic manifestation of some diseases, such as angina pectoris, pulmonary embolism, etc., which should be consulted in time to find out the cause of the disease. 1, physiological factors: young women after pregnancy, the uterus gradually become larger to compress the diaphragm, the diaphragm elevation can compress the heart and lungs, and pregnant women with generalized blood volume and cardiac load increase, so there can be chest tightness and mild pain symptoms. In addition, being in a depressed, moody mood for a long time is also likely to lead to anterior chest tightness and pain. 2、Pathologic factors: (1) angina pectoris: angina pectoris is an episodic chest pain or chest tightness discomfort caused by temporary ischemia of the myocardium, aggravated by exertion, alleviated after rest, generally the duration of the attack is not more than 15 minutes, and usually there is a significant improvement after sublingual nitroglycerin. (2) Pulmonary embolism: During the attack of pulmonary embolism, patients may have the symptom of anterior chest tightness and pain, accompanied by dyspnea, hemoptysis, fainting, etc., and some patients may also have the sense of near death and panic. In addition, coronary heart disease, chest trauma and other diseases can also lead to symptoms of anterior chest pain, but this symptom alone is not enough to diagnose the disease, it is recommended that the patient consult a doctor in a timely manner, improve the relevant examination, and comply with the doctor’s instructions for treatment.