Anuria refers to a total urine output of less than 100 milliliters in 24 hours, which is a more serious condition and may be renal failure; if it is a decrease in urine output over several hours, it is not serious and may be related to too little diet.
Anuria is defined as a 24-hour urine output of less than 100 milliliters. Once anuria occurs, it suggests serious renal failure, which may be caused by acute renal failure, such as insufficient renal blood flow due to massive blood loss, burns, infections, etc., or renal tubular injury due to drugs or poisons, or acute exacerbation of chronic renal insufficiency.
At this time, the body is unable to expel excess water and various metabolic wastes in the body, which may lead to edema, acute left heart failure, severe electrolyte disorders, acid-base imbalance, etc., which may be life-threatening, and therefore is a more serious condition. It requires prompt etiological treatment after clarification of the cause, and even renal replacement therapy such as hemodialysis if necessary.
If there is no discomfort, just no urine for several hours, can not be called anuria, may be caused by drinking too little water, just appropriate water, urine volume can be returned to normal.
If anuria occurs, especially if it is accompanied by edema or heart failure symptoms, the patient needs to consult a doctor in a timely and formal manner so as not to delay the treatment.