Diabetes is a chronic (lifelong) disease marked by high levels of sugar in the blood. See also: Gestational diabetes; Type 1 diabetes; Type 2 diabetes.
Diabetic ketoacidosis is a complication of diabetes that occurs when sugar (glucose) is not available as a fuel source by the body and fat is used instead.
Diabetic hyperglycemic hyperosmolar syndrome (HHS) is a complication of type 2 diabetes that involves extremely high blood sugar (glucose) levels without the presence of ketones.
Type 2 diabetes is a chronic (lifelong) disease marked by high levels of sugar in the blood. It begins when the body does not respond correctly to insulin, a hormone released by the pancreas.