People always encounter a variety of physical conditions in life, but many diseases can be effectively avoided as long as patients actively take preventive measures in life. So what kind of measures should be taken for the common chronic renal failure, the following is the relevant introduction. Chronic renal failure is a clinical syndrome, mainly manifested in the late stages of various kidney diseases, the decline of kidney function leads to toxins can not be smoothly excreted, thus causing the symptoms of systemic toxicity is chronic renal failure, its full medical name is chronic renal failure (CRF). Chronic renal failure is a disease that is difficult to treat, so it is important to “prevent it before it happens”. Here we will look at how to prevent chronic renal failure: The key to preventing chronic renal failure is to control the primary disease well. The most common primary disease is chronic glomerulonephritis, accounting for about 50%-60%. It is often a consequence of various glomerular diseases. For example, acute glomerulonephritis and nephrotic syndrome. Other etiologies include chronic pyelonephritis, urinary stones, lupus nephritis, diabetic nephropathy, hypertension, renal artery stenosis, drug-related kidney damage, etc. It can be said that all these diseases that may cause chronic renal failure should be taken seriously and treated actively. For example, acute glomerulonephritis may occur at any age, but is mostly seen in children, and most of them occur after infections, especially hemolytic streptococcal infections, which cause glomerular inflammatory changes through immune mechanisms, such infections are mostly seen in whistle infections, skin infections and scarlet fever. When these infections occur, in addition to active treatment, urinary routine should be checked within 2-3 weeks. In the treatment of pyelonephritis, it is important to use effective antimicrobials and a full course of treatment (2 weeks for acute pyelonephritis and 2 months for chronic pyelonephritis), combined with antimicrobials. Nephrotoxic drugs (such as streptomycin) should be avoided when using drugs. Through the above analysis of everyone for chronic renal failure should have a further understanding. This disease will be well controlled as long as the treatment is timely, if for no reason in life, loss of appetite, nausea and vomiting, headache, etc., we should be careful to prevent the chronic renal failure.