The items that need to be done for checking kidney disease mainly include blood test, urine test, imaging test, pathology biopsy and so on. 1. Blood test: it mainly includes blood routine, electrolyte, kidney function, etc. It can initially understand whether there is anemia, electrolyte disorder, creatinine, urea nitrogen is elevated or not. 2. Urine examination: urine routine, urine culture, 24-hour urine protein quantification, phase contrast microscopy of urine, etc., to clarify whether there is urinary tract infection, nephrotic syndrome, acute and chronic nephritis. 3. Imaging examination: e.g. ultrasound, CT, etc. can understand the size and integrity of the kidney, and whether there is any foreign body. 4. Pathological biopsy: this test is not usually done, but can be guided by ultrasound or CT when kidney disease is present and the type of disease needs to be clarified. If patients consider kidney disease, it is recommended to go to regular hospitals in time and have professional doctors to prescribe examination items and evaluate the examination results.