Disease caused by deficiency of ADH is …………….. .

Explanation

**Step-by-Step Solution:**

1. **Understanding ADH**: ADH stands for Anti-Diuretic Hormone, also known as Vasopressin. It plays a crucial role in regulating water balance in the body.

2. **Function of ADH**: The primary function of ADH is to act on the kidneys to promote the reabsorption of water and electrolytes. This means that when ADH is present, the kidneys retain more water, leading to less urine output.

3. **Consequences of ADH Deficiency**: When there is a deficiency of ADH, the kidneys do not reabsorb water effectively. This results in a significant increase in urine production, leading to excessive urination.

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