Diabetes is not one of the leading causes of death in the whole world. Although it was originated in the western countries, it has spread rapidly in the whole world. In this disease, glucose absorbing capacity is decreased. So, people do not get the required nutrition as well as loss much weight and get impaired immune system. There are many causes of diabetes. 

1. Polyuria Or Increased Frequency Of Micturition

2. Polydypsia Or Increased Thirst

3. Polyphagia Or Increased Appetite

4. Weight Loss Despite Excess Eating

5. Weakness, Fatigue & Tiredness

6.  Impairment Of Sight