Often drink water but seldom urinate. How is this?

The reasons for drinking more water and urinating less can be divided into physiological and pathological reasons. Physiological factors are more common in sweating, which causes less water and less urination; Physiological factors can be seen in digestive tract water loss (frequent retching or diarrhea), renal failure, urinary tract obstruction, early stage of shock, recessive gene water loss (burning or tracheal intubation) or moderate and severe hypoproteinemia, etc., all of which can cause drinking more water but less urine.

1. Digestive tract dehydration: A lot of human blood is lost from the digestive system during nausea, vomiting and diarrhea, and the intake of liquid is not enough. In such cases, even drinking water will lead to less urination, and it can be recovered after fully filling the liquid;

2. Chronic renal failure: When patients with serious chronic kidney disease have chronic renal failure, the renal function loses the function of drainage pipe, and hypokalemia occurs. After drinking water, patients may have less urination, that is, oliguria and anuria, which are often accompanied by edema.

3. Urinary tract obstruction: In the case of urinary tract obstruction, even if the urine intake is increased, it may not flow out of the body due to infarction, such as bilateral urinary calculi and moderate and severe prostate enlargement.

4. Early stage of cardiac arrest: At the early stage of cardiac arrest, the sudden decrease of blood perfusion of renal function can cause oliguria and anuria. At this time, there is no organic disease in renal function, and drinking water but urinating less can occur.

5. recessive gene dehydration: patients with fever or increased respiratory system dehydration, etc., can also have oliguria or even no urine.

6. Moderate and severe hypoproteinemia: At this time, because of the low plasma protein and low osmotic pressure, the liquid medicine drunk into the digestive tract enters the blood, and then quickly enters the serosa cavity and its subcutaneous tissue (i.e. the third space) due to the low osmotic pressure. At this time, drinking too much and urinating less will also occur, but the whole body edema and serosa hydrops will become heavier. This kind of moderate and severe hypoproteinemia is more common in three situations: nephrotic syndrome (too much loss); The decompensated phase of ascites due to liver cirrhosis (insufficient production); The middle and late stage of chronic active hepatitis (more serious lack of nutrition).