During repeated interruptions in breathing, changes in pressure inside the chest can trigger hormonal responses that increase urine production.
Possible signs of sleep apnea include:
- Loud snoring
- Gasping during sleep
- Morning headaches
- Excessive daytime sleepiness
- Difficulty concentrating
Treating sleep apnea may improve nighttime urination in some people.
8. Heart Failure and Fluid Redistribution
In some people with heart failure or significant swelling in the legs, fluid can accumulate in the lower body during the day.
When the person lies down at night, this fluid can return to the bloodstream and eventually be processed by the kidneys.
This may lead to increased urine production during the night.
Nighttime urination accompanied by symptoms such as:
- Swollen legs
- Shortness of breath
- Difficulty lying flat
- Rapid weight gain caused by fluid retention
should be medically evaluated.
9. Certain Medications
Some medications can increase urine production.
These may include:
- Diuretics, sometimes called “water pills”
- Certain blood-pressure medications
- Some medications used for heart conditions
If a medication is contributing to nighttime urination, a healthcare professional may sometimes recommend changing the time it is taken.
However, you should never change the dose or timing of a prescription medication without medical advice.
10. Changes Associated With Aging
Getting older can naturally increase the likelihood of nocturia.