Write the causes for diabetes mellitus and diabetes insipidus.

Explanation

Hyperglycemia is otherwise known as Diabetes mellitus. It is caused due to reduced secretion of insulin. As the result, blood glucose level is elevated. Diabetes mellitus is of two types, Type I Diabetes and Type II Diabetes.
Type I diabetes is also known Insulin dependent diabetes, caused by the lack of insulin secretion due to illness or viral infections.
Type II diabetes is also known as Non- Insulin dependent diabetes, caused due to reduced sensitivity to insulin, often called as insulin resistance.