Soylu A.Altunoluk B.Güneş A.Baydinç Y.C.2024-08-042024-08-0420041300-5804https://hdl.handle.net/11616/91229Introduction: Double J ureteral stents are being used in urological practice for more than 25 years. The indications for stent insertion have increased during the recent years. Thus the complications of stents are also more frequent than before. In addition to irritative symptoms, indwelling stent usage could lead to serious complications especially due to prolonged implantation periods. Materials and Methods: In this report, we present two cases in which forgotten double J stents necessitated nephrectomy due to loss of renal function caused by the development of pyonephrosis and retroperitoneal abscess. Conclusion: Kidney loss due to forgotten ureteral stent is the most dramatic and unwanted complication. The indications for stent insertion should be considered carefully in every patient. Preventive measures and regular follow up are very important before indwelling a double J stent, especially for the early diagnosis of complications.trinfo:eu-repo/semantics/closedAccessComplicationForgotten ureteral stentNephrectomyArticle3022452482-s2.0-4344632129N/A