Nephrotic syndrome is a group of symptoms in glomerular diseases, which is characterized by an obvious increase in the permeability of glomerular capillary walls to plasma proteins. Pathological examination showed that urine protein was more than 3.5%/ day. Plasma albumin is less than 30g/l; Edema; Elevated blood lipids. The onset of this disease can be urgent or slow. Systemic, postural, sunken edema, severe hydrothorax and ascites, mediastinal edema, oliguria. Hypertension or postural hypotension. Low pulse, weak pulse, oral drinking. Urine protein > 3.5g/day, up to dozens of grams. Granular cast, renal tubular epithelial cells and red blood cells can be seen in urine, and C3 and macroglobulin are positive in severe cases. Plasma protein decreased obviously, albumin was the most obvious, below 30 g/L, and blood cholesterol, triglyceride and low density lipoprotein increased. Often complicated by (respiratory tract, urinary system, skin and abdominal cavity can also cause) infection, thrombosis and embolism (renal vein, limb, vein, inferior vena cava and pulmonary vessels), acute renal failure, protein's disease and fat metabolism disorder.