Typical angina attacks are mostly located in the precordial region, but can also be in atypical areas such as the epigastrium, jaw, and can radiate to the back of the left shoulder and left arm. Angina pectoris refers to the clinical symptoms caused by insufficient blood supply to the myocardium in coronary heart disease. Its episodes are characterized by dull pain in the precordial region or pressure-like, burning pain, mostly associated with physical activity and emotional excitement, the site of the attack from below the jaw, the upper abdomen above the region between the possible, more than half of the patients may be accompanied by radiating pain to the back of the left shoulder and the left arm. Once a patient develops angina symptoms, it indicates that the lesion of coronary artery has been more serious, and it is recommended to consult a doctor in time to clarify the diagnosis and treatment, so as not to delay the condition.