Diabetes and its treatments can author multifarious complications. Acute complications (hypoglycemia, ketoacidosis, or nonketotic hyperosmolar coma) may occur if the Diabetic Test Strips contagion is not adequately controlled. Serious long-term complications include cardiovascular canker (doubled risk), chronic renal failure, retinal depreciation (which can ahead to blindness), nerve damage (of numerous kinds), and microvascular damage, which may cause erectile dysfunction and poor torment healing. Poor healing of wounds, particularly of the feet, can pilot to gangrene, and possibly to amputation.

The moniker diabetes, without qualification, most often refers to diabetes mellitus, which is associated with excessive nectareous urine (known as "glycosuria") but there are several rarer conditions also named diabetes. The most everyday of these is diabetes insipidus in which the urine is not sweet (insipidus meaning "without taste" in Latin); it can be caused by either kidney (nephrogenic DI) or pituitary gland (central DI) damage.