Most children with diabetes are type 1 diabetes, with insulin deficiency as the main cause, mostly with pancreatic beta cell failure, prone to diabetic ketoacidosis, and a few obese children with a family history of diabetes, who may also suffer from type 2 diabetes. The common symptoms of diabetes in children mainly include the following: 1. thirst, drinking, eating and urinating. When blood sugar rises, glucose has the effect of osmotic diuresis, a large amount of glucose is excreted with urine, and the available carbohydrates are reduced, so the symptoms of polyuria, thirst, drinking and eating will occur. 2. weight loss. When blood sugar rises and urine sugar increases, the glucose available to the body is reduced. Only lipolysis can be carried out for energy supply, so weight loss and wasting will occur. 3. weakness, patients with elevated blood glucose and insufficient energy supply will have non-specific symptoms such as weakness and discomfort, and in severe cases, diabetic ketosis or ketoacidosis can occur, with gastrointestinal symptoms such as nausea and vomiting. 4. blurred vision, elevated blood glucose will lead to changes in atrial water osmolarity, causing blurred vision. 5. double lower limbs of Numbness and pins and needles sensation, elevated blood sugar will affect the peripheral nerves, resulting in numbness and pins and needles sensation at the end of the extremities, and in severe cases, glove and glove-like sensation can occur. 6. other, children with diabetes can also develop urinary tract infections, slow wound healing and other symptoms.