Diabetic patients who have been wanting to vomit should consider whether diabetic ketoacidosis, but also consider whether there are gastrointestinal diseases, such as dyspepsia, gastroenteritis, etc., but also to consider whether caused by hypoglycemic drugs, such as metformin hypoglycemic drugs will make some patients produce nausea, vomiting symptoms. If you are taking metformin, you can stop using it for observation and go to the hospital as soon as possible to check your blood glucose and urine routine, and if you exclude high blood glucose and ketosis, you have to consider whether it is caused by gastrointestinal diseases. There are also common diseases such as cervical spondylosis, high blood pressure, cerebrovascular disease, renal insufficiency can also cause nausea and vomiting symptoms, so be sure to go to the hospital for systematic examination and targeted treatment.