Although rarely, aspergillosis can cause obstructive uropathy. This generally occurs in patients with immunosuppressive conditions. Herein, we report a case of aspergilloma that caused ureteral obstruction in a 79-year-old man with no immunosuppressive conditions. A computed tomography revealed that his left pelvocalyceal system and ureter showed mild dilation, without a definite obstructive lesion. The fungal bezoar was removed using an ureteroscopy. The patient was successfully treated with antifungal medication.