Increase or decrease of urine volume: The kidney is one of the main organs for excreting waste in the body. If there is an increase or decrease in urine volume, it may be a problem with renal function.
Abnormal urine color: Normal urine color is light yellow. If the urine color changes, such as hematuria, pyuria and brown urine, it may be a kidney problem.
Urinary tract discomfort: Kidney disease may lead to urinary tract discomfort, such as frequent urination, urgency and pain.
Renal pain: the kidney is located at the waist. If there is pain in the kidney area, it may be a kidney problem, such as kidney calculi's disease and kidney infection.
Edema: The kidney is one of the regulating organs of water balance in the body. If there is edema, it may be a kidney problem.
Hypertension: The kidney can regulate blood pressure in the body. If you have persistent hypertension, it may be a kidney problem.