Myocardial infarction usually passes the danger period in about 6 to 8 weeks, but the exact recovery should also be assessed based on the severity of the patient’s infarction and treatment. Myocardial infarction is a potentially life-threatening acute cardiovascular disease caused by acute occlusion of the coronary arteries, leading to myocardial ischemia, necrosis, and impairment of heart function. The month following the occurrence of myocardial infarction is dangerous and may induce serious complications such as malignant arrhythmia, cardiac rupture, cardiogenic shock, ventricular septal perforation, valvular perforation, and even serious consequences such as sudden death. Myocardial repair after myocardial infarction usually takes 6~8 weeks, with the growth of blood vessels and fibroblasts in the infarcted area, gradually replacing the necrotic cardiomyocytes, myocardial function can be gradually restored. If timely treatment is provided through thrombolysis, PCI, etc., the risk period will be shortened accordingly; however, if the condition is severe or not treated in time, and extensive myocardial necrosis occurs, the risk period may be prolonged. Therefore, when myocardial infarction is suspected, you should immediately call 120 emergency and rest on the spot, waiting for rescue, and do not move around to avoid aggravating your condition. Once the diagnosis of myocardial infarction is confirmed, the treatment should be standardized in accordance with medical advice to avoid complications such as malignant arrhythmia and perforation of the interventricular septum.