Diabetes or Diabetes Mellitus or Diabetes Type 2 is a condition where the person has high blood glucose (blood sugar). It can be due to:
a) Inadequate insulin production, or
b) the body's cells do not respond properly to insulin, or
It was previously known as non-insulin dependent diabetes mellitus (NIDDM), or adult onset diabetes mellitus (AODM). It is also called as 'Silent disease' since you may not know if your blood sugar level increase.