Have you ever experienced this: Drink two sips of water before going to bed, and you will feel the urge to urinate.
Even if it is only a few minutes, when you are about to lie down and sleep, you still have to force yourself to go to the toilet again.
But there are some people who have no urine after drinking water for a few hours...
How long will it take for the water to become urine? How many times a day is considered normal? "Life Times" (search for "LT0385" in WeChat to follow) interview an expert to explain, and tell you what a healthy pee looks like.
Interviewed Expert
Chief Physician of Urology, Southern Hospital, Southern Medical University Wu Peng
Deputy Chief Physician, Department of Psychiatry, Huilongguan Hospital, Beijing Song Chongsheng
How long will the drinking water become Pee?
Water turns into urine, normally takes 30~45 minutes , which is equivalent to the time of a class in school.
The length of time the water stays in the body is mainly affected by two factors, one is whether to eat salty or light, and the other is to eat more or less.
If you eat too salty, the interval will be longer; drinking after eating is less likely to urinate than drinking without eating; water after exercise is not easy to drain; cold weather makes it easier for people to go to the toilet.
In addition, the hot and cold weather will also affect the urination time. After the water turns into urine, it will be stored in the bladder. Whether it is discharged quickly or slowly depends on the size of the bladder.
The shortest time for water to turn into urine in the body is only 6-8 minutes, and the longest takes about 120 minutes. This means that it takes about 6 to 120 minutes to turn into urine after drinking water into the body. Different people have different rates of urine formation.
How many times a day is normal to urinate?
Generally speaking, the amount of urine a person excretes every day is about 1500 ml. But as long as the daily urine output is more than 400 ml and less than 3000 ml, there is no problem.
Urinate 5~8 times a day, 4~7 times during the day, 0~1 times at night, which is the best ratio of urination frequency.
If you do not drink a lot of water, but urinate more than 8 times, it is considered frequent urination.
Healthy urine should look like this:
The color is light yellow and translucent, just like the first tea brewing.
When drinking a lot of water, the urine may be colorless like plain water; when drinking less water and sweating a lot, the urine may be beer-like yellow. These conditions are normal.
Why do some people want to urinate so easily?
Many people think that they always want to urinate because of kidney deficiency. In fact, most frequent urination has nothing to do with the kidneys. Only if frequent urination and urine protein is found to be high in routine urinalysis, can it be a kidney problem.
In fact, frequent urination is related to the following reasons:
01
Overactive bladder
This is a kind of urine Acute symptoms are a syndrome characterized by frequent urination and nocturia.
The incidence of overactive bladder is very common. The incidence rate is 1/10 for people over 40 years old, and the older the age, the higher the incidence rate.
For people who are relatively obese, they should pay attention to weight loss and avoid consuming a lot of water, as well as irritating foods and drinks. Try to drink plenty of water during the day and not before going to bed.
02
Natural bladder is small
The size of the bladder is different. Some people are born with a smaller bladder, and the stored urine volume is also smaller.Smaller.
03
Drinking and urinating habits
Some people are not used to drinking water actively, they have to wait until they are particularly thirsty to drink, and the bladder will adapt to lack of water after a long time. environment of. Once there is water inflow, the bladder is suddenly stimulated, and the urge to urinate will be produced.
04
High blood sugar level
If not only frequent urination, but also a lot of urine output, it may be a metabolic disease of internal medicine, such as diabetes or polyuria.
People with high blood sugar levels usually have metabolic disorders and their ability to absorb glucose is weakened. The sugar in the urine will increase, and the urine will also increase. Even if they don't drink much water, they tend to go to the toilet frequently.
05
Neurological frequent urination
Neurological frequent urination is related to bad psychological factors, especially the more anxiety, the more obvious frequent urination.
For example, when I was out of the car at first, I was afraid that it would be inconvenient to go to the toilet, so I went to the toilet in advance, and tried to urinate clean or more, so I urinate repeatedly.
Why does someone drink too much water but don’t want to urinate?
The average adult bladder capacity is about 450ml, generally 250ml is the intention to urinate.
The urine output is less than 400ml per day, which means oliguria, which is almost never seen in normal people. Once it occurs, it is mostly acute renal failure.
01
Have the habit of holding back urine
If you hold back your urine frequently, the sensitivity of your bladder will decrease. Even if you drink a lot of water, your body will be less sensitive. Able to adapt and will not produce urinary urges so quickly.
02
Exercise more sweating
People who exercise regularly, the body consumes energy and water faster, water enters the body and is metabolized faster, plus sweating, etc. , There is no urination.
03
is in a state of extreme water shortage
At this time, add water, the renal tubules will absorb a lot of water first, and the urine formed will be less, so it is possible to drink a lot of water. It is difficult to feel urine.
04
Disease factors
Pathological decrease in urine output is divided into: oliguria and anuria.
Oliguria means that the urine output is less than 400ml in 24 hours. Sudden oliguria is a very important sign of acute renal failure. Anuria means that the urine output is less than 100ml in 24 hours. Persistent anuria is mainly seen in organic renal failure, manifested as uremia.
The specific reason for the decrease in urine volume needs to be comprehensively judged based on imaging and laboratory tests. ▲
Editor of this issue: Liu Yun瑽
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