Today kidney transplantation is the best treatment choice of end stage renal failure. Double-j catheters have been used in renal transplant patients to prevent urinary leakage and ureteric obstruction but these catheters have many complications like urinary tract infection, obstruction, catheter encrustation, perforation and migration. Although these complications, double-j catheters are now widely used in urological practice. Yet there is controversy among transplant surgeons in the routine use of these catheters.
A case of renal transplant patient whose double-j catheter’s distal end was mistakenly penetrated to the tip of the bladder foley catheter is reported. Because of that, the double-j catheter was taken out with the foley catheter at the postoperative early period. The use of 26 cm length double-j catheter by cutting its bladder side for making it suitable to the operation area is thought to be an important factor which made this complication possible. This very rare case was examined in view of the literature. In conclusion, it is thought that the use of appropriate size and length of double-j catheters without cutting any part and without destroying the “j” formation will decrease these complications in renal transplant patients.