Myocardial infarction is myocardial infarction, and a severe myocardial infarction can pass the danger period in about 2 months. Myocardial infarction is the phenomenon of myocardial ischemia and necrosis that occurs when the blood supply to the heart is insufficient due to blockage of coronary arteries. It is associated with heart disease, coronary atherosclerosis, elevated blood lipids, obesity and other causes. Acute myocardial infarction may lead to pressure pain in the anterior region of the heart, often accompanied by a sense of imminent death, and may even have chest tightness, shortness of breath, confusion, blood pressure drop and other symptoms of shock, and in severe cases, death is possible. Emergency thrombolytic therapy or percutaneous coronary intervention is required. Myocardial infarction may lead to complications such as mitral valve prolapse, arrhythmia, ventricular wall tumor, etc., which may lead to death in severe cases. The risk of another heart attack or death is higher within 2 months after a severe myocardial infarction, so it takes about 2 months after a severe heart attack to be considered out of danger.