Chest pain is a disease caused by deficiency of vital energy, diet, emotions, cold evil, etc., with phlegm, blood stasis, qi stagnation, cold stagnation blocking the heart meridian, and paroxysmal tightness and pain in the tanzhong or left chest as the main clinical manifestations. In mild cases, there is occasional short-term mild chest dullness or dull pain, or paroxysmal vague discomfort in the tanzhong or left chest; in severe cases, the pain is severe, or it is a squeezing-like colic. It is often accompanied by palpitations, shortness of breath, difficulty breathing, even shortness of breath, panic, pale complexion, cold sweat, etc. It is often induced by fatigue, full meals, cold and emotional excitement, and it can also occur without obvious inducements or when quiet.