Waking up to urinate at night is called nocturia. It becomes more common with age, but frequent nighttime urination isn’t something you should automatically dismiss as “just getting older.”
Common reasons
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Drinking a lot in the evening, especially water, tea, coffee, or other caffeinated drinks.
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Enlarged prostate in men, which can cause a weak stream, urgency, or difficulty starting.
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Overactive bladder or urinary-tract problems.
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Diabetes, particularly when blood sugar is high.
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Leg swelling: Fluid that accumulates in the legs during the day can return to the bloodstream when you lie down, increasing urine production at night.
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Sleep apnea: Repeated breathing interruptions can contribute to nocturia.
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Certain medications, especially some diuretics (“water pills”).
What you can try
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Reduce large amounts of fluid 2–4 hours before bedtime, while still drinking enough during the day.
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Limit caffeine and alcohol in the evening.
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Empty your bladder immediately before going to bed.
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If your ankles/legs swell, elevating your legs for a few hours before bedtime may help.
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If you’re taking a diuretic, don’t change its timing yourself—ask your doctor whether the timing is appropriate.
Occasionally waking once can be normal, particularly in older adults. Repeatedly waking two or more times every night, especially if it’s new or disrupting your sleep, is worth discussing with a healthcare professional.
Seek prompt medical attention if frequent urination is accompanied by blood in the urine, fever, painful urination, severe back/flank pain, inability to urinate, or extreme thirst with unexplained weight loss.
