1. Introduction

Diabetes insipidus is much less common than diabetes mellitus. It is a disorder where there is either a deficiency of vasopressin (ADH) or an insensitivity of the kidney tubules to the presence of this hormone.

The hypothalamic nuclei of the pituitary gland secretes the antidiuretic hormone. This hormone acts mainly in the distal-collecting tubules of the kidney and stimulates the reabsorption of water according to bodily need. Onset of this "disease" is said to be insidious or abrupt and may occur at any age. However, we know that no disease occurs abruptly but it develops only after a period of time due to unhealthful practices.