Diabetes mellitus type 2 (formerly noninsulin-dependent diabetes mellitus(NIDDM) or adult-onset diabetes) is a metabolic disorder that is characterized by hyperglycemia (high blood sugar) in the context of insulin resistance and relative lack of insulin.
Diabetes mellitus type 2 is a long term metabolic disorder that is characterized by high blood sugar, insulin resistance, and relative lack of insulin. Common symptoms include increased thirst, frequent urination, and unexplained weight loss.
Type 2 diabetes usually starts as insulin resistance. Cells stop responding properly to insulin and sugar is unable to get from the blood into the cells. Over time, the pancreas cannot make enough insulin to keep blood sugars in the normal range and the body becomes progressively less able to regulate blood sugar.