PROBIO Journal · Men over 40
Prostate health over 40: needing to urinate at night, weak urine stream and a feeling of incomplete emptying
Getting up at night to use the toilet, a weaker urine stream or the feeling that your bladder never quite empties: from 40 onwards, these symptoms often occur together.
Needing to urinate at night has a medical term: nocturia. It means you wake up at least once during the night because you need to pass urine. In this guide you will learn how often it is normal to go to the toilet at night, what causes the night-time urge to urinate in men and women, what you can do about it yourself and when you should have it checked by a doctor. It also includes a 7-day check and a checklist for your doctor’s appointment.
How often is it normal to go to the toilet at night?
Going to the toilet once a night is not unusual for adults over 40. Doctors speak of nocturia as soon as someone wakes up at night to pass urine. The night-time urge usually becomes disruptive and in need of treatment from two toilet visits per night, because deep sleep then suffers noticeably.
| Toilet visits per night | Assessment (guide values) |
|---|---|
| 0 to 1 | usually considered unremarkable from 40 onwards |
| 2 | noticeable nocturia: observe causes and adjust habits |
| 3 or more | should be checked by a doctor, especially if there are other symptoms |
Guide values for orientation. Your doctor will assess them in the context of your symptoms.
With age, the body produces less at night of the hormone that reduces urine production during sleep (antidiuretic hormone, ADH). As a result, more urine is produced at night, and the night-time urge to urinate increases in many people from 50 onwards.
Needing to urinate at night: the most common causes
Behind frequent urination at night there are roughly three mechanisms: the body produces too much urine at night, the bladder holds less or retains it less well, or sleep is so light that you notice the urge to urinate.
| Cause | Explanation |
|---|---|
| Drinking in the evening | Large amounts in the evening, coffee, black or green tea, alcohol and carbonated drinks stimulate the kidneys and the bladder |
| Benign prostatic enlargement (BPH) | The prostate narrows the urethra, the bladder does not empty completely and signals sooner. The most common cause in men over 50 |
| Fluid retention in the legs | Fluid collected during the day flows back when lying down and is excreted at night |
| Overactive bladder (irritable bladder) | Sudden, strong urge to urinate, even with little urine in the bladder |
| Sleep problems and sleep apnoea | If you wake up often, you notice the urge to urinate more readily. Pauses in breathing at night also increase the amount of urine |
| Medication | For example, water tablets (diuretics) taken in the afternoon or evening |
| Urinary tract infection | Often with a burning sensation when urinating |
| Other conditions | Such as diabetes, heart failure or kidney disease, which should be checked by a doctor |
Lots of urine at night or small amounts?
A simple clue to the cause: if you pass large amounts each time at night, your body is producing too much urine at night (nocturnal polyuria). Typical reasons are drinking in the evening, fluid retention, sleep apnoea or medication. If you pass only small amounts, the cause is more likely the bladder or the prostate. The 7-day check below will show you which.
Night-time urge to urinate in men and women
Needing to urinate at night in men: does the prostate play a role?
In men over 50, the prostate is often behind the night-time urge to urinate. Benign prostatic enlargement (benign prostatic hyperplasia, BPH) becomes more common with each decade of life. Typical is a combination of a night-time urge to urinate, a weaker urine stream, post-void dribbling and the feeling that the bladder never quite empties. Read more in Feeling of incomplete emptying: when your bladder doesn’t feel quite empty and Weak urine stream from 40.
But: not every man who often needs the toilet at night has a prostate problem. Drinking habits, fluid retention and poor sleep are at least as common.
Needing to urinate at night in women
In women, an overactive bladder, a weakened pelvic floor, for example after childbirth, and the menopause are common reasons. When oestrogen levels fall, the lining of the bladder and urethra becomes more sensitive. Urinary tract infections also often first show up as a frequent urge to urinate at night.
What helps with needing to urinate at night? 8 tips for calmer nights
- Drink earlier in the day: Drink 1.5 to 2 litres spread across the day, most of it by 6 pm. In the 2 to 3 hours before sleeping, only small sips.
- Coffee only until midday: Caffeine has a diuretic effect and irritates the bladder. The same applies to black and green tea, cola and energy drinks.
- Reduce alcohol in the evening: Alcohol inhibits the hormone that slows urine production at night. A glass of wine in the evening can noticeably increase the urge to urinate at night.
- Avoid water-rich foods in the evening: Soup, melon, cucumber or lots of fruit in the evening provide additional fluid. Spicy and very salty foods also make you thirsty.
- Put your legs up: If you tend to have swollen ankles, put your legs up for 30 to 60 minutes in the late afternoon or early evening. That way the retained fluid is excreted before you go to sleep.
- Empty your bladder twice before sleeping: Go to the toilet just before going to bed, wait 20 to 30 seconds and try again.
- Pelvic floor training: A trained pelvic floor helps you control the urge to urinate better, in men and women alike.
- Improve your sleep: If you sleep more deeply, you wake up less often from the urge to urinate. Fixed bedtimes, a dark, cool bedroom and no screens in bed help. Our 10 rules for falling asleep and sleeping through the night show you how.
If you wake up at night and can’t get back to sleep
Many people are bothered less by the trip to the toilet itself than by lying awake afterwards. Keep the light dimmed, don’t look at your phone or the clock. Calm breathing helps you get back to sleep more quickly. You can read what a calm evening routine looks like in Magnesium in the evening.
Are there home remedies for needing to urinate at night?
Pumpkin seeds, nettle tea or saw palmetto are often mentioned. For none of these home remedies is an effect against the night-time urge to urinate scientifically proven well enough to replace a medical examination. Nettle tea also has a diuretic effect and therefore does not belong in the evening. The most effective home remedies are the habits above: drinking less in the evening, no coffee or alcohol, putting your legs up.
The 7-day check: finding the causes of needing to urinate at night
Keep a fluid diary (bladder diary) for one week. Often, after just a few days, it becomes clear where the night-time urge to urinate comes from. Note down:
- what and how much you drink, with the time
- coffee, tea and alcohol
- every toilet visit during the day and at night, at night ideally with the amount (measuring jug)
- when you go to bed and get up, and how you slept
- medication, with the time
How to evaluate it: If more than a third of the day’s total urine was produced at night, your body is producing too much urine at night. If there are many small amounts, the cause is more likely the bladder or the prostate. Bring the diary to your doctor’s appointment.
The 4-week routine against needing to urinate at night
| Period | Focus | In practice |
|---|---|---|
| Week 1 | Observe | Do the 7-day check, change nothing |
| Week 2 | Ease the evening | Move drinking forward to before 6 pm, coffee only until midday, no alcohol during the week |
| Week 3 | Support your body | Put your legs up in the evening, take a walk after dinner, pelvic floor exercises every day |
| Week 4 | Strengthen sleep | Fixed bedtimes, double voiding before going to bed, repeat the diary and compare |
If the night-time urge to urinate has not improved after four weeks, have it checked by a doctor.
Weak urine stream: how it shows
Doctors describe a weak urine stream as a bladder-emptying disorder. These signs are typical, and several often occur together:
- a thin, weak urine stream that no longer reaches far
- delayed start: it takes a while for the urine to come
- an interrupted or weakened urine stream that stops in between
- a split or spraying urine stream
- straining when urinating
- urinating takes noticeably longer than before
- dribbling after urinating
- the feeling that your bladder never quite empties, more on this under Feeling of incomplete emptying
- frequent urge to urinate, including at night, see Needing to urinate at night
The prostate is about the size of a chestnut and sits directly below the bladder. The urethra runs through it. From around 40, the prostate slowly begins to grow in many men. This benign prostatic enlargement (benign prostatic hyperplasia, BPH) is very common: from 50, about one in two men has an enlarged prostate, and by 80 the large majority.
Not every enlarged prostate causes symptoms. When it does, a weak urine stream is often the first sign. Later, a feeling of incomplete emptying, dribbling and a night-time urge to urinate often follow. Worth knowing: the size of the prostate says little about how severe the symptoms are.
Is a weak urine stream a sign of prostate cancer?
Usually not. Prostate cancer often grows in the outer part of the prostate and, in the early stages, generally causes no problems with urination. A weak urine stream therefore points more towards benign enlargement. Precisely because prostate cancer causes no symptoms early on, regular screening from 45 makes sense.
The urologist measures the strength of the urine stream with uroflowmetry: you pass urine into a special funnel, and a device records how many millilitres of urine flow per second. The measurement is painless and takes only as long as urinating itself. For a meaningful result, your bladder should be well filled.
| Maximum urine flow (Qmax) | Assessment in men (guide values) |
|---|---|
| over 15 ml/s | usually considered normal |
| 10 to 15 ml/s | borderline, monitored by a doctor |
| under 10 ml/s | markedly weakened urine stream, further investigation |
Guide values for orientation; they depend on age and the volume of urine. Your doctor will make the assessment.
What happens at the urologist’s
A conversation about your symptoms, often with a short questionnaire (International Prostate Symptom Score, IPSS), a urine sample, a urine flow measurement, ultrasound of the bladder, prostate and residual urine, a digital rectal examination and possibly the PSA level in the blood. In Germany, from the age of 45, statutory health insurance covers prostate screening once a year.
Feeling of incomplete emptying: what is behind it?
The feeling of incomplete emptying is the sensation that urine is still left in the bladder after urinating. Many describe it like this: “My bladder doesn’t feel empty”, “I need to go again shortly afterwards” or “It keeps dribbling”.
Worth knowing: not every feeling of incomplete emptying means that residual urine actually remains in the bladder. Sometimes the bladder is empty but feels irritated. Only a measurement at the doctor’s shows whether urine really remains.
Measuring residual urine
The doctor measures the amount of residual urine directly after urinating using ultrasound over the lower abdomen. The measurement takes a few minutes and is painless.
| Residual urine volume | Assessment (guide values) |
|---|---|
| under 50 ml | usually considered unremarkable |
| 50 to 100 ml | monitored by a doctor |
| over 100 ml | should be investigated more closely |
Guide values for orientation. Your doctor will assess them in the context of your symptoms.
Double voiding
After urinating, wait 20 to 30 seconds, relax and try again. This helps many people empty their bladder more fully.
Needing to urinate at night: when should you see a doctor?
Have the night-time urge to urinate checked if you regularly need to get up twice or more per night, if it is new, or if it persists despite changed habits. Your first point of contact is your GP practice, and for men also a urologist. Immediate medical help is needed if:
- you cannot pass urine at all (urinary retention, an emergency)
- there is blood in your urine
- you have pain or burning when urinating
- you have a fever or chills
- you have severe thirst and pass large amounts of urine (a possible sign of diabetes)
- you have shortness of breath, palpitations or severely swollen legs
What happens at the doctor’s
The examination is usually straightforward: a conversation and evaluation of your fluid diary, a urine sample, blood sugar, ultrasound of the bladder, kidneys and, in men, the prostate, often a urine flow measurement and a residual urine measurement, possibly the PSA level. In Germany, from the age of 45, statutory health insurance covers prostate screening (digital rectal examination) for men once a year.
Checklist for your doctor’s appointment
- Fluid diary for the last 3 to 7 days
- List of all medication with the time you take it
- How long you have needed to urinate at night and whether it has increased
- Other symptoms: weak urine stream, feeling of incomplete emptying, burning, snoring, swollen legs
Frequently asked questions about needing to urinate at night
How often is it normal to go to the toilet at night?
Once per night is usually considered unremarkable in adults over 40. From two toilet visits per night, it is called disruptive nocturia, which you should observe and, if necessary, have checked by a doctor.
What is nocturia?
Nocturia is the medical term for needing to urinate at night, i.e. when you wake up at night because you need to pass urine.
What helps immediately with needing to urinate at night?
The most effective measures are drinking most of your fluids by 6 pm, coffee only until midday, no alcohol in the evening and double voiding right before sleeping. If your legs are swollen, it helps to put them up in the early evening.
Is needing to urinate at night a sign of prostate problems?
It can be related, especially in men over 50. Often, however, drinking habits, fluid retention or poor sleep are behind it. Whether the prostate is involved is clarified by a urologist.
Why do I need the toilet so often at night even though I don’t drink anything in the evening?
Possible reasons are fluid retention in the legs that is excreted at night, an enlarged prostate, an overactive bladder, sleep apnoea, medication or conditions such as diabetes. Have this checked by a doctor.
When should I see a doctor about needing to urinate at night?
If you regularly get up twice or more per night, the urge is new, or other symptoms appear, such as burning, blood in the urine, fever, severe thirst or a weak urine stream.
Which drinks increase the urge to urinate at night?
Coffee, black and green tea, cola, energy drinks, alcohol and carbonated drinks. In the evening, it is best to drink only small amounts of still water.
Can alcohol trigger the urge to urinate at night?
Yes. Alcohol inhibits the hormone that slows urine production at night. That is why many people need the toilet more often at night after a glass of wine or beer in the evening.
Do women also need to urinate at night?
Yes. In women, an overactive bladder, a weakened pelvic floor, the menopause and urinary tract infections are common reasons for needing to urinate at night.
Do home remedies help with needing to urinate at night?
Pumpkin seeds, nettle tea or saw palmetto are often mentioned, but their effect is not sufficiently proven. Changed drinking habits, less coffee and alcohol and putting your legs up in the evening make the biggest difference.
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Food supplements are not medicines and are not intended to treat the complaints described in this article. Always have symptoms checked by a doctor.
Read more in the PROBIO Journal
- Sleep hygiene: 10 rules for falling asleep and sleeping through the night
- Quality at PROBIO: raw materials, forms and bioavailability
This article is for general information only and does not replace medical advice, diagnosis or treatment. Food supplements should not be used as a substitute for a varied and balanced diet and a healthy lifestyle.