It is possible for people in their 30s to get diabetes. As the standard of living improves and activity decreases, the onset of diabetes is trending younger, with type 2 diabetes being the most common. The occurrence of diabetes is associated with genetic factors, environmental factors, and autoimmunity. A family history of diabetes, obesity, combined hypertension, hyperlipidemia, and a history of gestational diabetes are all predisposing factors for diabetes. If you have multiple risk factors, you should have your blood glucose tested as soon as possible. A typical diabetic patient may present with excessive drinking, urination, overeating and weight loss. The treatment mainly includes diabetes education, medical nutrition therapy, exercise therapy, condition monitoring and medication. The general principle of medical nutrition therapy is to determine a reasonable total energy intake, distribute various nutrients in a reasonable and balanced manner, and restore and maintain ideal body weight; exercise can increase insulin sensitivity and help control blood glucose and body weight; condition monitoring includes blood glucose monitoring, monitoring of other risk factors and complications, and advising patients to self-monitor blood glucose daily to guide the adjustment of Drug therapy includes two categories of oral drugs and injectable preparations, which should be used under the guidance of doctors for a long time. Most of the patients can maintain normal blood glucose level for a long time with active and effective treatment.