Myocardial infarction usually refers to myocardial infarction, which usually cannot be completely cured, but the condition can be improved by saving some dying heart muscle cells through timely detection and early treatment. Myocardial infarction is mainly due to the occurrence of plaque, spasm or thrombosis in the blood vessels (coronary arteries) that nourish the heart, resulting in the blockage of the blood vessels, and the myocardium within the supply range of the blood vessels is necrotic due to ischemia. Myocardium is a non-renewable cell, and its repair relies on scarring, which is usually incurable by therapeutic means. If detected in time, the myocardial cells do not die completely, it is possible to restore the perfusion of the heart and save the dying myocardium through the current therapeutic means, such as thrombolysis, coronary intervention, coronary artery bypass grafting and other myocardial reperfusion treatments, so as to improve the prognosis of the patients. Patients with myocardial infarction often have underlying disease of coronary atherosclerosis, high blood pressure, high blood cholesterol, etc. These are risk factors for myocardial infarction, so such patients should take medication regularly and adopt a healthy lifestyle to prevent myocardial infarction. If myocardial infarction occurs, please consult the hospital in time. Early treatment is the key to improve the patient’s prognosis.