Which symptoms are most commonly associated with Diabetes Insipidus?

Diabetes Insipidus is characterized primarily by polyuria (excessive urination) and polydipsia (excessive thirst). This condition occurs due to insufficient production of the antidiuretic hormone (ADH), also known as vasopressin, which is responsible for regulating water balance in the body. When ADH levels are low, the kidneys are unable to concentrate urine, leading to the excretion of large volumes of dilute urine. The body loses more water than usual, which triggers excessive thirst as a compensatory mechanism to prevent dehydration.

In contrast, the other symptoms listed do not typically correlate with Diabetes Insipidus. Weight gain and edema are associated with conditions that involve fluid retention, which is not present in this disorder. Nausea and vomiting are more indicative of gastrointestinal issues or other medical conditions rather than Diabetes Insipidus. Fatigue and dizziness can result from dehydration; however, they are not direct symptoms of Diabetes Insipidus itself. Therefore, polyuria and polydipsia are the hallmark symptoms that best define this condition.