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Dr. Andrew Rynne

Family Physician

Exp 50 years

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Experiencing frequent nocturnal urination with high volume. What is the reason?

Answered by
Dr. G.Srinivasan


Practicing since :1991

Answered : 1414 Questions

Posted on Tue, 10 Dec 2013 in Urinary and Bladder Problems
Question: I am a 57 year old morbidly obese Caucasian man who is being treated for high blood pressure. I’m routinely tested for glucose and lipid levels and that is normal. So are my PSA results. I routinely take Zoloft and/or Wellbutrin for chronic depression. Several years ago – about the time I was 50 – I began experiencing the need to go to the bathroom very frequently. This was accompanied by a extremely strong urge to go. And a few times this resulted in a momentary loss of bladder control when I was wide awake. This passed and my daytime visits are no different now than they were before – or as anyone else’s. About the same time that the troubling day patterns faded I have had a problem with excessive nocturnal urination and adult onset enuresis. (I suffered from enuresis as a child from the time I was 8 until early adolescence; it ended when I began medication for depression.) The issue related to urination is frequency and volume. On average I wake up every hour – or I wake up in a wet bed. I’ve measured the volume of nighttime urine production and that averages 1-1.5 liters per night; sometimes as much as 2 liters. If I am particularly tired and don’t wake up it’s not uncommon to experience multiple episodes of enuresis in a single night. The frequency of urination and episode of enuresis do not seem to vary much even when I restrict my liquids and caffeine consumption. This does impact volume. I sleep with several pillows under by neck and back to avoid snoring and sleep apnea. The onset of this was preceded a rapid gain of a significant amount of weight due to poor diet and inactivity that was triggered by depression and knee injuries. . I don’t know if bladder problems are related or coincidental. These days I’m on a fairly restrictive diet and I’m pursuing an exercise program; to loose the weight or as preparation for bariatric surgery. I probably consume 1 - 1.5 liters of caffeinated beverages a day; none after 4pm. I eat dinner late, by necessity, and usually have soup or salad which are water based. I mentioned this to my PCP and his position was that we needed to deal with the weight first. Thoughts please on what I’m experiencing and what I can do about it.
Answered by Dr. G.Srinivasan 7 hours later
Brief Answer: Possibly ageing plus overactive bladder-------- Detailed Answer: Welcome to the forum. Thanks for your detailed narration of history. I love to answer such questions as it looks like you really need help and i also feel i can make a difference. Night time frequency and volume are high. SO it may be termed NOCTURIA or NOCTURNAL POLYURIA. This can happen in old age as well as low hormone secretion called vasopressin. Also, lack of bladder control and bed-wetting may be due to overactive bladder. The following things should help you. 1. Change from water based dinner to solid dinner could reduce the night time urine output. 2. Manage early dinner ( i understand that you take late by necessity). 3. Treatment of overactive bladder in the form of ANTI-CHOLINERGICS. Usually at your age, it is combined with an alpha blocker to avoid possible urine retention due to enlarged prostate. 4. Condom drainage or penile clamp at night to prevent bed-wetting. Kindly discuss with you primary care physician the relevant issues and wish you good health. I am ready to answer more queries if any. Best regards
Above answer was peer-reviewed by : Dr. Chakravarthy Mazumdar

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Recent questions on  Nocturnal polyuria

doctor1 MD

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doctor1 MD

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