The proposed invention is a ureteral stent (2) comprising a kidney end part (200) and a bladder end part (210), the kidney end part (200) being tubular and curved, said stent (2) being characterized in that the bladder end part (210) has at least one thread, and in that the stent additionally comprises a tubular intermediate portion (220) extending between the kidney end part and the bladder end part, said portion having an external diameter decreasing towards the bladder end part, and the minimal external diameter of said portion (220), at the connection to the thread of the bladder end part (210), is substantially equal to the diameter of the thread, said portion having a length of between 0.5 cm and 12 cm.
