Anti-glomerular basement membrane (Anti-GBM) antibody glomerulonephritis (GN) is a small vessel vasculitis in which circulating antibodies are directed against an antigen intrinsic to the GBM, and accounts for about 10% to 20% of crescentic GN. When Anti-GBM GN combines with pulmonary hemorrhage, it is called Goodpasture disease. If we suspect the patient has anti-GBM disease, diagnosis should be made without delay. Initiating immunosuppressants with cyclophosphamide and glucocorticoids plus plasmapheresis in all patients with anti-GBM GN is lifesaving and helps prevent kidney failure.