Almost no urine in a day may be caused by physiological reasons such as less water intake, but it may also be caused by chronic renal insufficiency and glomerulonephritis.
1. Physiological reasons: less water intake, the body is in a state of dehydration, urine production is less, the phenomenon of almost no urine a day may occur.
2. Chronic renal insufficiency: Early stage may show polyuria, increased nocturia, anemia, etc. Late stage shows oliguria, then there may be almost no urine a day.
3. Glomerulonephritis: Typical symptoms include facial edema, hematuria, proteinuria, oliguria or anuria, etc., and the phenomenon of almost no urine in a day may occur.
There may also be other causes of almost no urine a day, it is recommended to consult a doctor in a timely manner to identify the causes of standardized treatment.