Lupus nephritis is the kidney damage of systemic lupus erythematosus, and the renal manifestations vary greatly, which can be manifested as asymptomatic proteinuria and/or hematuria, or as hypertension, nephrotic syndrome, acute nephritis syndrome, etc. 1. Asymptomatic proteinuria and/or hematuria: asymptomatic, normal blood pressure, no edema, only abnormal urine routine. 2. Hypertension: patients may develop hypertension, which is more common in the presence of renal vascular lesions, and even malignant hypertension. 3. Nephrotic syndrome: large amount of proteinuria can be seen in diffuse proliferative and/or membranous lupus nephritis. 4. Acute nephritis syndrome: acute onset of the disease, manifested by proteinuria, hematuria, edema, hypertension, and acute decompensation of renal function. Early lupus nephritis may also have other manifestations, it is recommended that patients go to regular hospitals in a timely manner, under the guidance of the doctor to give targeted treatment or therapy.