For the kidney examination, you mainly need to register for nephrology. The kidney is an important organ of our body, which can maintain the water-electrolyte balance and remove the excess metabolic waste, such as creatinine and urea. If there is a problem with kidney function, the main early manifestation is edema of the face and lower limbs, or increased foam in the urine, and deepening of the urine color. When the kidney is damaged to a certain extent, many other systemic symptoms will appear, such as nausea, vomiting, weakness, anemia, osteoporosis, etc. If these indicators are normal, the kidney can be considered to be fine. When early kidney disease is present, it is often manifested as positive urine protein, which requires a visit to the nephrology department for further screening of kidney-related diseases, the most common being nephrotic syndrome The most common nephrotic syndrome, renal insufficiency, glomerulonephritis, IgA nephropathy and so on. Therefore, if you want to do some tests around the kidneys to evaluate whether there are any kidney problems, you need to go to the nephrology department.