Name(s):
Excessive discharge of urine
Copious production of urine
Frequent nighttime urination
Nature
The passage of an amount of urine considerably in excess of the 1.5 litres or thereabouts which is the usual daily quantity.
Incidence
Polyuria is a symptom of diabetes, certain forms of Bright's disease and some nervous diseases. In Chinese medicine, frequent and copious urination points to a deficiency of kidney qi.