There are four types of Diabetes mellitus.

• Type 1 Diabetes mellitus

• Type 2 Diabetes mellitus

• Gestational Diabetes mellitus

• Other specific type Diabetes mellitus.

TYPE 2 DIABETES MELLITUS :

This type of Diabetes is also known as Adult onset Diabetes. Non-insulin dependent Diabetes Mellitus (NIDDM), Maturity onset diabetes.

It is more common and constituents 80-90% of all cases of diabetes. It usually occurs in adults over 40 years of age. But now a day few cases are observed in teen years also. Many people with Type 2 diabetes do not known they have it, although it is a serious condition. Generally, when the diagnosis is made, patient is asymptomatic. Routine urine or blood test shows the presence of high glucose levels in the blood or urine. The onset of symptoms in type 2 are slow and does not progresses rapidly.

The main cause of Type 2 Diabetes mellitus is insufficient Insulin secretion by Beta Cells due to their destruction. Due to lack of insulin, there is raised blood sugar level and finally diabetes” type 2 diabetes mellitus also occur due to development of Insulin Resistance where the cells of the body mainly fat and muscle cells does not accept the insulin. The liver of such patients also produces glucose through a process called gluconeogenesis, which further worsens the controlling of glucose level.

Type 2 diabetes is more prevalent because of faulty eating habit, increasing obesity end failure to exercise. There is a direct relationship between the degree of obesity and the risk of developing type 2 diabetes. The chance to become 2 diabetes doubles for every 20% increase form normal body weight. Heredity and Genetic factors play a major role in development of Type-2 Diabetes.

In Europe and North America about 80% of all diabetes have Type-2 Diabetes have Type 2 Diabetes mellitus.