A patient’s family had asked this question. The patient was in their local treatment period, usually no discomfort and no bad signs, but all of a sudden the person said no. What is the reason for this? This is what I want to talk to you about today. You must be alert to the patient’s heart to avoid painless myocardial infarction. As the name suggests, a painless heart attack is when an acute myocardial infarction occurs when the patient does not have typical pain in the chest heart area, or only shows chest tightness, panic, shortness of breath, weakness or coughing, coughing, bloating, diarrhea, etc. It is because of the constant feeling that there is no problem with the heart, easy to miss and misdiagnosis, problems will delay the best time to see the doctor, and the mortality rate is very high! Why is this? Because diabetes can cause neuropathy in patients, the nerve function in the heart area will also be impaired, sensory conduction is slow, and problems do not easily feel pain, or even no pain. At the same time, diabetic foot patients are mostly middle-aged and elderly patients, who are less sensitive and have many chronic diseases that can mask the pain. Therefore, for patients with diabetic foot combined with coronary heart disease and other cardiac problems, monitoring of cardiac problems must be enhanced when treating foot wound trauma, and the physician must also arrange to do an electrocardiogram on the patient in a timely manner, and must not start simply from the presence or absence of cardiac pain in the medical history to avoid such painless myocardial infarction. It is also imperative to give patients and their families the science that when unexplained epigastric discomfort with nausea, vomiting, throat tightness, cough, chest tightness, shortness of breath, dyspnea, dizziness, and some other symptoms that do not seem to be related to the heart, it is important to consider the possibility of a heart problem and inform one’s physician in a timely manner so as not to miss the opportunity for treatment.