Salt-loss nephritis has typical clinical manifestations clinical manifestations of polyuria and nocturia, skin pigmentation of bronze color, acute attacks often feel obvious weakness, loss of appetite, nausea and vomiting, weight loss, weak pulse, low blood pressure, prone to upright hypotension, defecation and syncope. There are dehydration manifestations, muscle spasm, severe confusion, delirium, coma and uremic acidosis. Its examination methods are: 1, laboratory tests Blood test: blood sodium, blood chloride are lower blood potassium increased (occasionally lower), creatinine urea nitrogen can increase the appearance of azotemia and metabolic acidosis, blood bicarbonate and pH value are decreased. Urine examination: elevated urinary sodium, urine specific gravity fixed albuminuria urinary aldosterone increased significantly, often more than primary aldosteronism. 2, auxiliary examination Routine, ultrasound, X-ray flat film or CT examination; renal biopsy histopathology examination will be able to clarify the primary diagnosis.