Typical nephrotic syndrome is often accompanied by decreased urine volume, large amounts of foamy urine, swelling of the legs, ascites, long-term proteinuria may cause malnutrition and stunted growth in children, and in severe cases there may be nausea and vomiting, abdominal pain, headache, dizziness, and increased blood pressure. In addition, nephritic nephropathy is often associated with proteinuria, hypoproteinemia, hyperlipidemia, edema, hematuria, persistent hypertension, renal insufficiency, and other symptoms. Nephrotic nephropathy is partly secondary to nephritis, which is more difficult to treat than simple nephrotic syndrome and has a longer course, and a small number of cases can progress to chronic renal insufficiency.