The diagnosis of glomerulonephritis is usually confirmed by symptoms, laboratory tests and pathological results of renal puncture. Symptoms of glomerulonephritis include swelling of both lower limbs or even the whole body, poor appetite, fatigue, and elevated blood pressure. Second, laboratory tests, positive indicators of nephritis laboratory tests include urine routine urine protein positive, positive urinary occult blood, increased red blood cell count, 24-hour urine protein quantitative elevation, blood biochemistry shows that albumin decreased, cholesterol increased, blood creatinine increased and so on. Third, renal puncture pathology examination, patients with renal puncture pathology examination on the diagnosis of nephritis has an important significance, can clearly identify whether the patient has nephritis, can identify the cause of nephritis is primary or secondary, clear diagnosis of nephritis pathology, according to the type of pathology to guide the treatment.