The importance of the kidneys to people is self-evident, so how to protect the kidneys? First, drink more water and urinate more. Because the metabolic wastes in the body are discharged through dissolving in water, so drinking more water can help the elimination of metabolic wastes and can discharge some toxic substances, in addition, drinking more water can also prevent the occurrence of urinary stones, so we should ensure that there are about 2000ml of urine every day, especially at night, we should also drink the right amount of water. Second, a light diet. The waste produced by the digestion and absorption of protein is ammonia, eating too much protein food forces the kidneys to work more, which will increase the burden on the kidneys, so advocate a low-protein, high-quality protein diet, eat less meat, seafood and animal offal, eat less food containing high fat, in addition, mushrooms, fungus, soy products, etc. also need to be excreted by the kidneys, so it will increase the burden on the kidneys, it is recommended to eat less, but also eat less salt, less Drinking alcohol, so that not only can protect the kidneys, but also conducive to the health of the heart, brain and blood vessels. You can eat more fresh vegetables and fruits. Third, actively treat the primary disease. To blood pressure, diabetes, urinary tract infections, etc. will make the kidney function gradually decreases, therefore, timely treatment is necessary, however, the medication should avoid the use of drugs harmful to the kidney, such as some aminoglycoside antibiotics: gentamicin, etc. Do not take painkillers and Chinese medicine indiscriminately, do not blindly follow some advertisements and take the so-called health products, iodine contrast agents can also aggravate the original kidney damage. Therefore, obey the doctor’s will and tell the truth about the previous condition and the drugs you have taken. Fourth, regular health checkups. Because the kidney has a strong compensatory capacity, kidney diseases often have no obvious symptoms in the early stage, and once the problem appears, it is often at an advanced stage, therefore, regular urine routine and ultrasound checkups are necessary. Kidney tumors are more likely to occur in men over 40 years old, and polycystic kidney is a hereditary disease, so early diagnosis and early treatment are necessary.