Early diabetes does not necessarily show the 10 signs, may appear weakness, drowsiness, urinate more, drink more, lose weight, eat more, etc., and some people do not have any symptoms, but also need to rely on laboratory tests to confirm the diagnosis. Diabetes mellitus, especially type 2 diabetes mellitus, most of the insidious onset of the disease, early on, there may be no obvious conscious symptoms, only for fatigue, sleepiness, depression and other non-specific symptoms, when the disease has progressed to a certain extent, there can be a typical drink more, eat more, urinate more, weight loss, “three more and one less” symptoms. Some patients may have developed diabetic complications at the time of diagnosis, such as diabetic retinopathy and diabetic peripheral neuropathy, which are characterized by blurred vision, itchy skin, slow healing wounds, and numbness of hands and feet. When uncomfortable symptoms occur, you should seek medical treatment and improve the examination.