Hemolytic uremic syndrome (HUS) is an important cause of acute renal failure, and may be irreversible. We describe a 45-year-old woman who developed non-enteropathic HUS soon after taking herbal medicine of unknown composition for a few days. A renal biopsy showed glomerular sclerosis and collapse secondary to the glomerular and vascular lesions of thrombotic microangiopathy. Her clinical condition was stabilized after 8 exchanges of plasmapheresis. However, renal failure persisted, and the patient still depends on long-term dialysis. The clinical manifestations, etiologies, and pathologic findings of HUS are discussed.