
Nocturnal enuresis, or bedwetting, is the involuntary release of urine during sleep. It is a common condition that affects people of all ages, from children to adults. While it is usually not a serious condition, it can be a symptom of an underlying medical or psychological issue. For example, it could be caused by a urinary tract infection, bladder cancer, diabetes, or even stress and restlessness. In adults, it is often a result of an underlying medical condition, such as bladder cancer, prostate cancer, or neurological disorders. Treatment options include behavioural changes, medication, and in some cases, surgery.
| Characteristics | Values |
|---|---|
| Nocturia | Waking up more than once during the night to urinate |
| Nocturnal Enuresis | The accidental release of urine during sleep |
| Causes of Nocturia | Drinking too much fluid before bedtime, sleep disorders, bladder obstruction, medications, health conditions, age, and gender |
| Causes of Nocturnal Enuresis | Lack of bladder control, urinary tract infection, nerve problems, urinary tract blockage, sleep apnea, genetics, constipation, hormones, small functional bladder capacity, failure to awaken during the night, psychological or emotional problems, medical conditions |
| Treatments for Nocturia | Restricting fluids, medications, afternoon naps, elevating legs, pelvic floor physical therapy, wearing compression stockings |
| Treatments for Nocturnal Enuresis | Behavioral changes, managing or treating underlying medical conditions, medications, surgery |
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What You'll Learn
- Nocturnal enuresis, or bedwetting, is the involuntary release of urine during sleep
- Nocturia is the medical term for waking up and needing to urinate
- Excessive night-time urination can be caused by drinking alcohol or caffeine before bed
- Nocturia may be a symptom of other conditions, such as sleep apnea
- Treatments for bedwetting include medication, bladder retraining, and bed-wetting alarms

Nocturnal enuresis, or bedwetting, is the involuntary release of urine during sleep
There are two main types of nocturnal enuresis: primary and secondary. Primary nocturnal enuresis occurs when an individual has never remained dry throughout the night for six consecutive months or longer. On the other hand, secondary nocturnal enuresis refers to bedwetting that starts after a person has already achieved a prolonged period of dryness at night, typically six months or more.
The causes of bedwetting can vary with age. For children, the most common cause is a lack of bladder control. This usually improves as children grow older and learn to control their bladder between the ages of two and four. In some cases, bedwetting in children may be indicative of underlying medical conditions, such as urinary tract infections, nerve problems, or sleep apnea.
For adults, nocturnal enuresis is often associated with underlying medical or psychological conditions. Some potential causes of adult bedwetting include genetics, constipation, hormonal imbalances, small functional bladder capacity, and psychological or emotional trauma. It is important to note that bedwetting is not a result of poor toilet training or laziness but is influenced by various factors.
The treatment for nocturnal enuresis depends on the underlying cause and can range from behavioural changes to medication and, in some cases, surgery. Behavioural interventions may include limiting fluid intake before bedtime, using alarms to condition the individual to wake up at the sensation of a full bladder, and bladder training to increase bladder capacity. Medications such as desmopressin and imipramine may also be prescribed to reduce nighttime urine production or increase bladder capacity. In rare cases, surgery may be considered for adults who have exhausted all other non-invasive treatment options.
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Nocturia is the medical term for waking up and needing to urinate
Nocturia can be caused by drinking too much fluid, sleep disorders, bladder obstruction, medications, and health conditions. It can also be caused by anatomical differences between the sexes, such as the prostate in men and the possibility of pelvic organ prolapse in women due to childbirth.
The symptoms of nocturia include waking up twice or more to urinate at night, increased volume of urination, and fatigue and sleepiness during the day due to a disrupted sleep cycle.
To treat nocturia, it is recommended to restrict fluids, especially caffeinated beverages, in the evening, and to take diuretic medication in the morning or at least six hours before bedtime. Other lifestyle changes such as taking afternoon naps, elevating the legs during the day, and wearing compression stockings can also help with fluid distribution and reduce nocturia.
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Excessive night-time urination can be caused by drinking alcohol or caffeine before bed
Nocturia, or nocturnal polyuria, is the medical term for excessive urination at night. Typically, the amount of urine produced by the body decreases at night, allowing people to sleep 6 to 8 hours without needing to urinate. However, drinking alcohol or caffeine before bed can lead to nocturia.
Alcohol suppresses the production of antidiuretic hormone (ADH) in the brain. ADH signals the kidneys to produce less urine, but when ADH is suppressed, the body produces more urine. As a result, the bladder fills more quickly and gets over-distended, leading to involuntary urination during sleep. Alcohol also irritates the detrusor muscle, part of the bladder wall that signals the need to urinate. If inhibitions are lowered due to drunkenness, these signals may be missed, resulting in bed-wetting.
Caffeine, on the other hand, activates the detrusor muscle, causing it to contract and triggering the urge to urinate before the bladder is even full. This results in holding less urine over time. Caffeinated beverages often accompany alcohol consumption, creating a double impact on the bladder.
To prevent nocturia caused by alcohol and caffeine consumption, it is recommended to avoid caffeine before a night of drinking, limit liquid intake, and make an extra trip to the bathroom right before bed. Setting a middle-of-the-night alarm can also help control bed-wetting. Additionally, reducing fluid intake 4 to 6 hours before bed and avoiding alcohol and caffeine can be effective measures.
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Nocturia may be a symptom of other conditions, such as sleep apnea
Nocturia, or the need to urinate at night, is a rarely recognised symptom of sleep apnea. Sleep apnea is a disorder that affects a person's breathing during sleep, causing repeated pauses in breathing. Obstructive sleep apnea (OSA) is the most common form of this disorder, and it is often diagnosed through a sleep study.
Research has established a link between sleep apnea and nocturia, and treating OSA has been shown to reduce nocturia. Experts suggest that nocturia affects up to half of people with OSA, yet it is underreported as patients may feel embarrassed or believe it is a normal occurrence.
The connection between the two disorders is uncertain, but researchers have proposed several theories. One theory suggests that OSA puts stress on the bladder through low oxygen levels and the release of hormones that increase urine production. Another theory attributes nocturia to a false signal of cardiac overload and a response natriuresis, but this theory has been deemed too simplistic.
Regardless of the underlying cause, nocturia can be disruptive to sleep and cause fatigue. If you are experiencing frequent nighttime urination, it is important to consult a doctor as it could be a sign of an underlying medical condition.
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Treatments for bedwetting include medication, bladder retraining, and bed-wetting alarms
Bedwetting, or nocturnal enuresis, is when someone accidentally urinates while sleeping. It is a common occurrence in children, even those who have been toilet-trained. While bedwetting can be a symptom of an underlying disease, it is not usually indicative of an underlying condition. In fact, only about 1% of children who routinely wet the bed have an underlying condition that explains their bedwetting.
Bedwetting can be frustrating for both parents and children, and it can cause children to feel embarrassed or upset. However, it is important to remember that bedwetting is typically a developmental issue that most children will outgrow.
If bedwetting is a concern, there are several treatment options available, including medication, bladder retraining, and bed-wetting alarms.
Medication
In some cases, medication can be used to help with bedwetting. For example, desmopressin (DDAVP) lowers the amount of urine the body produces at night. Anticholinergic drugs, such as oxybutynin (Ditropan XL), can also be used to reduce bladder contractions and allow the bladder to hold more urine. It is important to note that medication may not help everyone and that bedwetting will typically resume once the medication is stopped.
Bladder Retraining
Bladder training is a form of behaviour therapy that can be effective in treating urinary incontinence. The goal of bladder retraining is to increase the amount of time between urination and the amount of fluids the bladder can hold, as well as to reduce leakage and the sense of urgency associated with the problem.
Bladder retraining involves following a fixed voiding schedule, regardless of the urge to urinate. If the urge to urinate occurs before the assigned interval, urge suppression techniques such as relaxation and Kegel exercises can be used. As success is achieved, the interval is gradually increased until a comfortable voiding interval of three to four hours is reached.
Bed-wetting alarms
Bed-wetting alarms are another effective and safe treatment option for bedwetting. These alarms wake children at the first sign of urination and train the body to recognise the feeling of a full bladder. The child wears special underwear with sensors that beep loudly when urine is detected, prompting them to go to the bathroom. With consistent use, children will eventually learn to wake up to the alarm and use the bathroom independently.
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