Acute myocardial infarction is one of the heart diseases that seriously endanger people’s lives. There are usually precursors before the heart attack, such as: episodes of chest pain, back pain, toothache, upper limb soreness and upper abdominal pain, ranging from 3-10 minutes each time, accompanied by sweating or chest tightness, weakness, and a sense of frequent death in heavy cases, which is fatal during the attack and relieves like a good person without any discomfort. The attacks can be repeated, once a few days, or many times a day. The danger is that there is no discomfort after remission, many people work as usual, should seek, so that the sudden aggravation can not be relieved, resulting in myocardial infarction, which can make the patient disabled, and in severe cases, sudden death. Suggestions: Once the above-mentioned symptoms of discomfort, regardless of whether it is related to the heart, the correct approach is to go to the hospital to see a cardiologist to check the exclusion, so as not to cause a major disaster. If the physician confirms that it is a precursor to acute myocardial infarction, you should respect the medical advice to be hospitalized, bed rest, active treatment, and control the development of the disease to avoid acute myocardial infarction.