Patients with nephrotic syndrome often do not suffer from anemia. However, if a patient has severe chronic renal failure, renal anemia may occur. Generally, renal anemia occurs when the patient's blood creatinine level exceeds 256 micromoles/liter. Treatment mainly involves the use of erythropoiesis-stimulating agents and iron supplements. If the patient does not have obvious renal failure but exhibits anemia, it is important to investigate the cause. This could include gastrointestinal bleeding, the presence of systemic diseases, or even hematological disorders. For example, lupus nephritis can cause both nephrotic syndrome and anemia. In such cases, high-dose steroids and immunosuppressants may be required as a treatment to fundamentally address the issue.