Urinating more at night
Nocturia
Normally, the amount of urine your body produces decreases at night. This allows most people to sleep 6 to 8 hours without having to urinate.
Some people wake up from sleep more often to urinate during the night. This can disrupt sleep cycles.
Causes
Drinking too much fluid during the evening can cause you to urinate more often during the night. Caffeine and alcohol after dinner can also lead to this problem.
Other common causes of urination at night include:
- Infection of the bladder or urinary tract
- Drinking a lot of alcohol, caffeine, or other fluids before bedtime
- Enlarged prostate gland (BPH)
- Pregnancy
Other conditions that can lead to the problem include:
- Chronic kidney failure
- Diabetes
-
Drinking excessive amount of water
Drinking excessive amount of water
Excessive thirst is an abnormal feeling of always needing to drink fluids.
- Heart failure
- High blood calcium level
- Certain medicines, including water pills (diuretics)
-
Diabetes insipidus
Diabetes insipidus
Diabetes insipidus is an uncommon condition in which the kidneys are unable to prevent the excretion of water.
Waking often during the night to urinate can also be linked to obstructive sleep apnea and other sleeping disorders. Nocturia may go away when the sleeping problem is under control.
Home Care
To monitor the problem:
- Keep a diary of how much fluid you drink, how often you urinate, and how much you urinate.
- Record your body weight at the same times and on the same scale daily.
When to Contact a Medical Professional
Call your health care provider if:
- Waking to urinate more often continues over several days.
- You are bothered by the number of times you must urinate during the night.
- You have a burning sensation when urinating.
What to Expect at Your Office Visit
Your provider will perform a physical exam and ask questions such as:
- When did the problem start and has it changed over time?
- How often do you urinate each night and how much urine do you release each time?
- Do you ever have "accidents" or bedwetting ?
- What makes the problem worse or better?
- How much fluid do you drink before bedtime? Have you tried limiting fluids before bedtime?
-
What other symptoms do you have? Do you have
increased thirst
,
pain or burning on urination
,
fever
,
abdominal pain
, or back pain?
Increased thirst
Excessive thirst is an abnormal feeling of always needing to drink fluids.
Pain or burning on urination
Painful urination is any pain, discomfort, or burning sensation when passing urine.
Fever
Fever is the temporary increase in the body's temperature in response to a disease or illness. A child has a fever when the temperature is at or abov...
Abdominal pain
Abdominal pain is pain that you feel anywhere between your chest and groin. This is often referred to as the stomach region or belly.
- What medicines are you taking? Have you changed your diet?
- Do you drink caffeine and alcohol? If so, how much do you consume each day?
- Have you had any bladder infections in the past?
-
Do you have a family history of
diabetes
?
Diabetes
Diabetes is a chronic disease in which the body cannot regulate the amount of sugar in the blood.
- Does nighttime urination interfere with your sleep?
Tests that may be performed include:
- Blood sugar (glucose)
-
Blood urea nitrogen
Blood urea nitrogen
BUN stands for blood urea nitrogen. Urea nitrogen is what forms when protein breaks down. A test can be done to measure the amount of urea nitrogen ...
- Fluid deprivation
-
Osmolality
, blood
Osmolality
Osmolality is a test that measures the concentration of all chemical particles found in the fluid part of blood. Osmolality can also be measured with...
-
Serum creatinine
or
creatinine clearance
Serum creatinine
The creatinine blood test measures the level of creatinine in the blood. This test is done to see how well your kidneys are working. Creatinine can ...
Creatinine clearance
The creatinine clearance test helps provide information about how well the kidneys are working. The test compares the creatinine level in urine with...
-
Serum electrolytes
Serum electrolytes
A comprehensive metabolic panel is a group of blood tests. They provide an overall picture of your body's chemical balance and metabolism. Metaboli...
-
Urinalysis
Urinalysis
Urinalysis is the physical, chemical, and microscopic examination of urine. It involves a number of tests to detect and measure various compounds th...
-
Urine concentration
Urine concentration
A urine concentration test measures the ability of the kidneys to conserve or excrete water.
- Urine culture
- You may be asking to keep track of how much liquid you take in and how much you void at a time (voiding diary)
Treatment depends on the cause. If excessive nighttime urination is due to diuretic medicines, you may be told to take your medicine earlier in the day.
References
Carter C. Urinary tract disorders In: Rakel RE, Rakel D, eds. Textbook of Family Medicine . 9th ed. Philadelphia, PA: Elsevier; 2016:chap 40.
Gerber GS, Brendler CB. Evaluation of the urologic patient: In: Wein AJ, ed. Campbell-Walsh Urology . 10th ed. Philadelphia, PA: Elsevier Saunders; 2012:chap 3.
Landry DW, Bazari H. Approach to the patient with renal disease. In: Goldman L, Schafer AI, eds. Goldman's Cecil Medicine . 25th ed. Philadelphia, PA: Elsevier Saunders; 2016:chap 114.
-
Female urinary tract - illustration
The female and male urinary tracts are relatively the same except for the length of the urethra.
Female urinary tract
illustration
-
Male urinary tract - illustration
The male and female urinary tracts are relatively the same except for the length of the urethra.
Male urinary tract
illustration
-
Female urinary tract - illustration
The female and male urinary tracts are relatively the same except for the length of the urethra.
Female urinary tract
illustration
-
Male urinary tract - illustration
The male and female urinary tracts are relatively the same except for the length of the urethra.
Male urinary tract
illustration
Review Date: 8/31/2015
Reviewed By: Jennifer Sobol, DO, urologist at the Michigan Institute of Urology, West Bloomfield, MI. Review provided by VeriMed Healthcare Network. Also reviewed by David Zieve, MD, MHA, Isla Ogilvie, PhD, and the A.D.A.M. Editorial team.