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Why is there more urine at night? For a healthy person, the urine in the evening (12 hours)is less than 750ml. Generally, the urine at night takes up one thirds of the total urine in 24 hours. More urine at night or increased urine at night means that the urine in the evening is more than 750mol/L or takes up more than one third of the total urine. |
Why is there more urine at night? It may indicate there is damage in your kidney or heart or internal secretion or other diseases. In addition, increased urine can also be seen in healthy persons. Generally, more urine at night can be caused by the following conditions:
1. Physiological increased urine
If a healthy person drinks more water or other drinks such as tea and juice before going to bed, he will urinate at night. The theine in tea and caffeine in coffee can help the discharge of urine.
2. mental pressure
In modern times, due to enormous pressure, some people have bad sleep quality and tension in mind, both of which can lead to more times of urine at night.
3. chronic kidney disease
It is usually seen in those with hypertensive kidney disease, chronic interstitial nephritis, chronic renal glomerular nephritis, and so on. For these diseases, increased urine at night is the early sign. It is mainly caused by the damage of renal tubules. We generally can not see the abnormality through serum creatinine, regular test or ultrasound test. So high blood pressure or hypertension patients should be alert to the damage in kidney for long time high blood pressure can lead to renal small artery sclerotic.
4. heart function infufficiency
Patients with heart function insufficiency can have more blood flow in kidney after they lie down, which leads to more urine at night.
5. internal secretion disease
Internal secretion disease such as diabetes or diabetes insipidus is also a cause of increased urine at night.
