There are several types of high-risk factors for diabetes: first, pre-diabetes is also called impaired glucose tolerance, this state refers to the blood sugar has been high, but has not reached the stage of diabetes, specifically fasting blood sugar between 6.1-7mmol/L, 2h postprandial blood sugar between 7.8-11.1mmol/L, such a range can be called impaired glucose tolerance. Second, obesity, will lead to the generation of insulin resistance, and insulin resistance is one of the most important links in the occurrence and development of type 2 diabetes, and there are more and more people who are obese, so timely weight control is critical. Third, hypertension, hyperlipidemia, hyperuricemia and other metabolic syndromes, because abnormalities in these indicators can easily lead to the development of diabetes. Other high-risk factors include smoking, poor lifestyle such as long-term sedentary, little exercise, high salt, high fat diet, etc. Diabetes high-risk factors should be controlled in a timely manner so that diabetes can be prevented to the greatest extent.