Must go to the toilet before going to bed, is it normal or "sick"? If these situations occur, you really need to pay attention!

Recently, a strange word has become a hot search, called "urine sleeping body".

According to the entry, the "urinary sleep body" refers to the condition in which one must go to the toilet before going to bed, as one cannot fall asleep without going.

Image source: Screenshot of Weibo hot search

Many netizens said that this was exactly what was happening to them, and some even said, is there anyone who doesn’t go to the toilet before going to bed?

Some netizens added a detail. After washing up at night, they had already gone to the toilet and were ready to go to bed, but they ended up lying on the bed and browsing their mobile phones for a while. Finally, they felt sleepy, but felt they had to get up and go to the toilet again.

Is the "urinary body" a common phenomenon or a "disease"?

01

Why do people feel the urge to pee?

To figure out this problem, we need to understand why people feel the urge to pee.

After the human body produces urine, it is first stored in the bladder. An adult's bladder can store 300 to 500 ml of urine, which is roughly equivalent to a can to a plastic bottle.

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The bladder is a bit like a small ball, with a layer of smooth muscle in the middle called the detrusor muscle . As you can guess from the name, it has something to do with urination.

The detrusor muscle has nerves attached to it that can sense the pressure of the bladder. When the urine accumulated in the bladder reaches 150 to 250 ml, it squeezes the detrusor muscle, producing a shallow urge to urinate; when it accumulates to 300 to 400 ml, you will feel the need to urinate as soon as possible.

At this time, if you actively urinate, the brain will cause the detrusor muscle to contract, the bladder volume will decrease, and the urine will be squeezed out.

At the same time, there is a sphincter on the urethra, which usually contracts to close the urethra, but at this time it will open to allow urine to be discharged. The pressure on the detrusor muscle is reduced, and the urge to urinate disappears. In this way, the strength of the urge to urinate is related to the amount of urine.

However, things are not that simple.

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When people feel the urge to urinate, it is not only affected by the pressure of the detrusor muscle, but also related to their psychological state.

For example, many people feel the urge to urinate more frequently when they are nervous. When doing something annoying, they always want to go to the toilet.

Stimuli associated with going to the toilet can affect the urge to urinate. For example, if you hear the sound of running water while holding your urine, the urge to urinate will be stronger. Even if the urge to urinate is not strong, you will feel the urge to urinate when you walk to the toilet.

It can be seen that when a person wants to urinate, it is not just about receiving the signal of detrusor pressure, but also related to the psychological state.

Not only that, as people grow up, they also need to learn to control urination.

Infants and young children who are still using wet diapers will urinate at any time, and parents will then train them to use the toilet and control urination. In order to prevent their children from wetting the bed, some parents will ask their children to go to the toilet once when they wash their children, to help them form a conditioned reflex to urinate before going to bed.

After going to school, primary school students need to develop the habit of going to the toilet during class breaks. Later, people will also take the initiative to go to the toilet before taking exams or watching movies.

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Everyone wants to have high-quality sleep, preferably sleeping through the night.

Overnight, a lot of urine must accumulate in the bladder. Sometimes, this urine will turn into morning urine. But sometimes, if there is too much urine, people will wake up with the urge to urinate and crawl out of bed to urinate at night.

The experience of getting up to urinate at night is not pleasant. Although there are no statistics, many people have the habit of urinating before going to bed. Some people will not drink water for a period of time before going to bed and then empty their bladder in exchange for a good night's sleep.

Urinating before bed is not just a conscious choice of people, this action has long become a part of people's living habits.

Moreover, today people usually wash in the bathroom before going to bed, and both habits and environment can stimulate people to urinate.

Therefore, the so-called "urine body" is not a disease, but is indeed a common phenomenon.

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Nowadays, many people have the habit of checking their phones after going to bed.

During this period, urine continues to accumulate in the bladder. Coupled with the habit of urinating before going to bed, many people have to go to the toilet again after they feel sleepy.

It seems that you don't have to worry about nocturnal urination, and don't be surprised that you have the same urination time. However, if you have frequent nocturia, you need to pay attention to it.

02

How many times of nocturnal urination is called "frequent nocturia"?

Doctors believe that if a person interrupts his sleep two or more times in one night because of a strong urge to urinate, it is considered frequent. Generally, when this state is reached, the person himself will feel troubled. This is not sleep sleep syndrome, but may be nocturia.

Sometimes, getting up too often at night is just because you drink too much water before going to bed. This is normal. As long as you drink less water before going to bed, the symptoms will disappear immediately.

Also, the uterus of a pregnant woman will take up space in the bladder. When the bladder shrinks, it will be easier to feel the urge to urinate and she will get up more often at night. This is also normal.

What we need to do at this time is to care for pregnant women and give them more rest time.

However, diseases such as urinary tract infection, hyperthyroidism, diabetes, prostate hyperplasia , etc. may cause excessive nocturia.

If you are troubled by nocturia, do not rely on searching the Internet to diagnose the condition yourself. Go to the urology department of a regular hospital, register, ask a doctor to examine you, and prescribe the right medicine.

Let me summarize. When the bladder is squeezed, people will feel the urge to urinate. At the same time, people will also establish a conditioned reflex to urinate, forming a urination habit. Urinating before going to bed is a habit of many people, and sleep urination is not a disease.

However, if you frequently urinate at night more than twice, it may be nocturia and you need to seek medical attention immediately.

Author: Chen Chao, Master of Cognitive Neuroscience, Beijing Normal University

Reviewer: Xiao Yongshuang, deputy chief physician, Xuzhou Medical University Affiliated Hospital

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