Early common symptoms of kidney disease mainly include edema, abnormal urine color, abnormal urine output and fatigue. 1. Edema: Kidneys have the function of excreting metabolic wastes and regulating water and electrolyte balance. When kidney disease occurs, due to sodium retention and impaired renal tubular filtration of proteins, it may lead to edema of the body, which is most significant in the eyelids and double lower limbs, all of which are the manifestations of early kidney disease. 2. Abnormal urine color: when the kidney is abnormal, it may be manifested as hematuria, i.e. urine color can be seen as soy sauce color, meat wash or tea color, etc. If proteinuria occurs, it is often accompanied by symptoms such as increased foam in the urine, which is suggestive of early stage of nephropathy. 3. Abnormal urine output: when patients have increased nocturia, frequent urination, little or no urine, it suggests that the kidneys have abnormalities. 4. Weakness: Some patients with kidney disease have no obvious specific performance in the early stage, and they will have weakness and other phenomena. Other symptoms may appear in the early stage of kidney disease. If patients consider kidney disease, it is recommended to go to regular hospitals in time and standardize the treatment under the guidance of doctors.