Chronic glomerulonephritis can be diagnosed with hematuria-proteinuria as the main clinical manifestation, with or without edema and hypertension, and the history of the disease is more than three months, except for secondary glomerulonephritis and hereditary glomerulonephritis. Chronic glomerulonephritis, referred to as chronic nephritis, is characterized by proteinuria, hematuria, hypertension, and edema, with different onset modes and slow progression of the disease, with varying degrees of renal function impairment, and some patients will eventually develop uremia. Clinically, if there are abnormalities in urinalysis, such as hematuria or proteinuria, with or without edema and hypertension, as long as the history of the disease reaches more than three months, with or without renal function abnormalities, after the exclusion of secondary glomerulonephritis and hereditary nephritis, the diagnosis of chronic nephritis can be made. A renal puncture biopsy is required if the specific pathological type of chronic nephritis is to be clarified. Patients with chronic glomerulonephritis are advised to go to regular hospitals in time and standardize the treatment under the guidance of doctors.