Patients with high blood sugar can generally receive the New Crown vaccine, but the patient’s blood sugar needs to be controlled within a certain range. If the blood sugar exceeds a certain range, such as fasting blood sugar greater than 10.0 mmol/L and 2 hours postprandial blood sugar greater than 13.9 mmol/L, it is recommended to withhold the New Crown vaccination. If the patient’s blood sugar is smoothly controlled and there are no other uncomfortable symptoms, he or she can get the New Crown vaccine under the guidance of a professional doctor. If the patient’s blood sugar exceeds the above range or there are some acute complications, such as obvious pneumonia, respiratory tract infection, urinary tract infection, skin infection, diabetic foot or ketoacidosis attack, etc., the injection of New Crown vaccine is likely to cause some adverse reactions at this time, and at this time, patients with high blood sugar can have blood sugar control first and then have New Crown vaccination. If the blood sugar is still high, it is necessary to take glucose-lowering drugs, such as metformin, as prescribed by the doctor, and insulin can also be injected to control the blood sugar. In the daily life after the injection of the new crown vaccine, you still need to pay attention to self-protection and protection, because the injection of the new crown vaccine does not mean that everyone will have 100% antibody production after the injection, so you still need to be highly vigilant and wear a good mask to protect yourself.