The length of life after myocardial ischemia is not clear, but depends on the primary cause, the severity of the disease, and whether it is actively managed. In mild cases, the condition can be reversed without affecting life expectancy, while in severe cases, life may be lost in a short time due to complications. How long a person lives with myocardial ischemia depends on how well he or she takes care of the heart’s blood vessels. For myocardial ischemia that has been diagnosed, it can often be cured by actively searching for the cause of the disease and giving relevant treatment, based on relieving the cause. Therefore, the life expectancy of mild myocardial ischemia can be unaffected after active treatment. In the case of severe myocardial ischemia, such as severe stenosis of many coronary arteries or even massive myocardial infarction, treatment is difficult and life expectancy is short, most of which may not exceed 5 years. Because patients may develop myocardial infarction and malignant arrhythmia at any time, leading to the appearance of sudden cardiac death. Patients with myocardial ischemia are advised to actively seek formal treatment, subjectively and dynamically exclude disease-causing risk factors, and pursue a healthy lifestyle.