High blood sugar is harmful to the body.

High blood sugar is harmful to various organs and systems of the body. For example, diabetic ketoacidosis, hyperosmolar hyperglycemic state and other corresponding acute complications as well as diabetic retinopathy, diabetic nephropathy, these two types of diabetic microcirculation complications and diabetic heart disease, diabetic cerebrovascular disease and diabetic lower extremity vascular complications. It can also affect diabetic skin lesions, but also show diabetic feet, diabetic feet commonly known as rotten feet, often show intermittent claudication in the early stages of the disease, and with the severity of the disease, it can also cause fractures and amputations.