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A 35-year-old member asked:

Other than poor adh (vasopressin) production, what causes frequent urination at night?

1 doctor answer1 doctor weighed in
Dr. Alan Feldman
43 years experience
Many causes: Poor ADH (vasopressin) production is an extremely rare cause for frequent urination at night. One of the most common causes is fluid retention during the day. If you have varicose veins or other causes for swelling of the legs, once you lie down at night, the fluid comes out of the legs and into your bladder, making you urinate more. If you drink a lot in the evening, you will urinate more at night.
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Last updated Oct 14, 2014

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