Causes of little and yellow urine

Low and yellow urine because: First, insufficient water intake or excessive loss of body fluids, resulting in concentrated urine, then it will show yellow urine color. Due to insufficient body fluids, kidney filtration is reduced, so the amount of urine produced is less, and patients need to drink more water appropriately. If there is too much water loss, such as fever, nausea, vomiting, diarrhea, etc., it is necessary to carry out appropriate rehydration treatment to increase urine volume. After urine volume increases, urine color can also return to normal; Second, suffering from kidney infectious diseases, such as nephritis, pyelonephritis or nephrotic syndrome, etc., can show reduced urine output. This is because the kidney filtration is reduced, so that the patient's urine output is reduced, and because the urine output is too small, it can also show the condition of deepened urine color. Or infection occurs, urine contains more bacterial metabolites, urine pigment increases, so it shows the phenomenon of yellow urine color. Renal function tests, B-ultrasound of the kidneys and routine urine tests are needed to further confirm the diagnosis.