Late complications of diabetes are generally divided into several categories, mainly large blood vessels, small blood vessels, neuropathy, diabetic foot, and complications involving the cardiovascular and cerebrovascular triad. The most serious are cardiovascular and renal complications, such as diabetic ophthalmopathy, diabetic nephropathy, diabetic retinopathy, and diabetic foot disease, which are serious complications that affect the quality of life in the later stages. At present, the source of chronic complications is mainly the patient’s early failure to actively control blood glucose, resulting in the slow accumulation of chronic complications. So here to caution the majority of diabetic patients, if the symptoms of diabetes, must be timely consultation, to avoid the emergence of serious complications in the late stage, good blood sugar control can delay the emergence of complications 5-10 years. In ordinary life, if you want to prevent diabetes: 1, first of all, to have a healthy lifestyle, including more movement, more legs; 2, to control your mouth, eat more nutritious and balanced things, do not over-eat meat, to nutritionally balanced, vegetables and meat have a certain meat-vegetable ratio is very important, this is the prevention of diabetes pre-preparation. Once diagnosed with diabetes or diabetes symptoms, it is recommended that active diagnosis and treatment, control blood sugar stable, can delay the occurrence.