New diabetics can often be detected through popular diabetes education, screening and health checkups. Anyone who has the following should see a doctor: 1. Unexplained weight loss, especially in obese people who have recently lost weight. 2, relatives with a history of diabetes, and age 36 years or older. 3.Mothers who delivered a giant baby weighing more than 4kg. 4.People who have a history of pregnancy complications, such as multiple miscarriages, gestational toxicity, excessive amniotic fluid, fetal death in utero, stillbirth (abnormal fetus, autopsy found to have pancreatic hyperplasia), etc. 5. Those who have reactive hypoglycemia (mostly seen in obese people. Significant hunger, panic, cold sweat before eating). 6.Obesity. 7.The elderly. 8.Persistent ulcers on the extremities and repeated boils on the skin. 9.People who have a certain degree of “three more and one less” symptoms (drinking more, urinating more, eating more and losing weight). 10.People with itchy skin, especially perineum, etc.