What is the medical term for excessive urination?

The medical term for excessive urination is polyuria. This condition is characterized by the production of abnormally large volumes of urine, which can be a symptom of several underlying medical issues, including diabetes mellitus, diabetes insipidus, and certain kidney disorders. Understanding polyuria is important as it can indicate that the body is either unable to concentrate urine appropriately or is experiencing an issue with fluid management.

In the context of other choices: polyphagia refers to excessive hunger or food intake, pruritus indicates itching, and polydipsia describes excessive thirst. While these terms are related to different physiological responses, they do not pertain specifically to the volume of urine produced. Hence, polyuria is the correct answer, as it specifically addresses the increase in urination.