Polyuria is a commonly experienced symptom. Too much urine may be different than an increased frequency of urination. Polyuria needs to be distinguished from the slightly different symptoms of excessively frequent urination, urinary dribbling, or an unusual urgency to urinate.

Too much urine can be caused by any of the following:

• Too much fluid intake, particularly fluids containing caffeine or alcohol.
• Too much salt or glucose (if diabetic).
• Drug use, especially diuretics.
• Diabetes (both diabetes insipidus and diabetes mellitus).
• Psychogenic polydipsia, most common in women over age 30.
• Renal failure.

If too much urine is suspected, the urine volume and cause should be investigated by a health professional.