Do you experience frequent urination at night? Or did you experience frequent urination at night before getting treated for Sleep Apnea? If you have Obstructive Sleep Apnea, it is very likely the cause of your urination problems. Treat the Sleep Apnea problem, and you will find yourself waking up to go to the bathroom less often. Here's how come:
When the airway is blocked or partially blocked as it is during an apnea or hypopnea event, the body must exert more effort to pull air into the lungs, causing a change in pressure and more blood to flow toward the heart. The heart interprets this increased blood flow as an alert that there's too much fluid in the system. It then sends a signal to the kidneys via a hormone, the essence of which is "we have too much fluid in here; it's time to dump some overboard." The body's way to dump liquid overboard is to urinate.
When the airway is clear, as it would be when Positive Airway Pressure is acting as a splint to keep it open, this whole chain of events isn't set in motion. As if there weren't already enough good reasons to treat your Sleep Apnea, this is one more. Save the trips to the bathroom and sleep easier at night.