How long the renal insufficiency stage 3a, i.e. chronic kidney disease (CKD) stage 3a, can be maintained is related to many factors such as the treatment effect, the presence of serious complications and so on, and cannot be generalized. Chronic kidney disease (CKD) is categorized into CKD stage 1~5 according to the glomerular filtration rate, of which CKD stage 3a has a mild to moderate decrease in glomerular filtration rate between 45~59ml/(min-1.73m²). Treatment in this stage aims to slow down the progression of chronic kidney disease. For example, actively controlling hypertension, strictly controlling blood glucose, and controlling proteinuria. If the treatment is effective, chronic kidney disease progresses slowly; if the treatment is not effective, chronic kidney disease progresses, complications such as cardiovascular events may occur, and ultimately progresses to uremia. Patients with Chronic Kidney Disease (CKD) stage 3a are recommended to visit regular hospitals in time and standardize the treatment under doctors’ guidance.