The causes of myocardial infarction are multiple, hyperlipidemia, smoking, hypertension, diabetes, a family history of myocardial infarction and so on may cause myocardial infarction. Myocardial infarction is a more serious acute disease, the cause of the disease is coronary artery occlusion and cause blood can not feed the cells of the heart muscle, resulting in permanent damage to the heart tissue necrosis, serious or even shock or death, the main causes of myocardial infarction disease causes are as follows: 1. Hyperlipidemia: the patient’s blood vessels will have excess fat and cholesterol, which will cause the blockage of coronary arteries, resulting in myocardial infarction, the chances of getting higher. 2. Smoking: Smoking can cause hardening of coronary arteries and increase the risk of myocardial infarction. 3. Hypertension: Hypertension is one of the main causes of myocardial infarction. If hypertensive patients do not take medication on time, the pressure on the blood vessel wall will increase, which will increase the chance of myocardial infarction. 4. Diabetes: diabetic patients are prone to atherosclerosis of coronary arteries, making the heart blood vessel obstruction, resulting in an increase in the chances of myocardial infarction. 5. Family history of myocardial infarction: if you have a family history of myocardial infarction, your chances of having an infarction are several times higher than normal. To summarize, there are many causes of myocardial infarction, it is recommended to actively treat the primary disease, maintain a good lifestyle, and if you are not feeling well, consult a doctor in a timely manner and follow the doctor’s instructions for treatment.