The human being has two kidneys, located on each side of the lumbar spine, whose main structures include the glomerulus, the tubules, the collecting ducts and the glenoid. It cleans about 200 liters of blood every day, excretes toxic substances, metabolic wastes and excess water from the body, maintains the balance of water and the internal environment, and also regulates blood pressure, promotes red blood cell production and keeps our bones healthy by secreting certain hormones. Who is more likely to get chronic kidney disease: people with diabetes, hypertension, cardiovascular disease, metabolic diseases (obesity, hyperlipidemia, hyperuricemia), chronic urinary tract infections, urinary tract obstruction, rheumatic diseases (lupus erythematosus, etc.), or the presence of hypercoagulable states, family history of kidney disease, long-term use of nephrotoxic drugs (non-steroidal anti-inflammatory drugs, antimicrobials, etc.), high-protein diet, smoking, excessive alcohol consumption People with low birth weight and age 65 years or older should be aware of this. Protecting the kidneys starts now: 1. control high blood pressure:low salt, low saturated fat diet, prevent obesity, do not smoke; 2. stay healthy and exercise properly; 3. do not smoke; 4. check the function of the kidneys regularly; 5. control body weight; 6. diabetic patients should check the function of the kidneys regularly; 7. avoid drug abuse.