CPAP Nocturia

[PeaceLoveAndPizza]

As Steve said, there are no scientific studies to support the claim. Apocryphal data from Reddit or CPAP forums do not fit into that category.

One possibility is that when people sleep better the urge to visit the loo in the middle of the night may be lessened depending on the root cause.

[newtothis1]

Background: Nocturia (two or more urinations per night) is a common symptom in obstructive sleep apnea syndrom (OSAS). Increased intra-abdominal pressure, higher secretion of atrial natriuretic peptide and arousals are responsible for nocturnal urination.

[PeaceLoveAndPizza]

It completely depends on the root cause. I doubt CPAP will cure prostate or bladder cancer, UTI’s, or other urological issues. People need to be evaluated by a doctor. The devil is in the details. Be sure to rule out other issues first. I learned the hard way on that one.

https://www.ncbi.nlm.nih.gov/pmc/articles/PMC4582090/

https://pubmed.ncbi.nlm.nih.gov/32125734/

https://pubmed.ncbi.nlm.nih.gov/16635510/

[newtothis1]

You are right. My sleep doctor told me that on average anyone with apnea wakes up at least 4 times to urinate. So I would assume that whatever the cause is there is a likelihood of improvement with CPAP.

[SarcasticDave94]

I guess you may be needing a process of elimination for nocturia causes. Apnea is just one. Not attempting to say you do have something else to deal with, however if CPAP therapy isn't helping nocturia, then other reasons would need investigated.

Caveat is CPAP therapy and all connected aspects are producing positive progress towards increasing health. If CPAP therapy isn't producing apnea therapy effectively yet, I don't think it's going to benefit other health concerns either.

[PeaceLoveAndPizza]

Agreed. 

For some whilst nocturnal may get better, the root cause still needs to be understood. When I was diagnosed with OSA and was going 2-3 times a night, CPAP stopped nocturnal loo visits completely. 

Then it no longer did. More tests showed prostate issues that are still being treated. No more nighttime loo visits thankfully.

My point is to rule out other medical issues first. PSA, DRE, cystoscopy, CT, MRI, etc, all help figure out what is going on with the waterworks.

[40plus]

Within a week of cpap useage my night peeing went from 10 episodes to 1 or even none at all. It was a dramatic effect for me. But my untreated AHI was quite high at 69.

If you have high AHI that creates a lot of stress hormones in your body as you struggle to breath. These hormones drives urin and you feel a almost constant need to pee. If cpap treatment works good that means less stress on the body and less desire to pee.

[srlevine1]

I was speaking with a friend who is a prostate specialist and mentioned CPAP, OSA, and night-time urination.

He said the biggest cause of night-time urination, outside of diuretics and drinking water with other medications near bedtime, might be the natural redistribution of fluid from the legs and lower extremities to the central circulation, leading to increased urine production and nocturnal voiding--pronounced in individuals with reduced heart functions and poor circulation.

He suggested that sleep fragmentation due to frequent awakenings related to breathing pauses may contribute to altered sleep architecture and nocturnal urine production. And, by reducing sleep disruptions, CPAP therapy may help normalize nighttime urination patterns.

He also noted that there are no definitive answers as there is little research into this area because there is a lack of money due to CPAP being a non-drug-related treatment.

[newtothis1]

Thanks for letting me know