Disclosed is a ureteral stent having a body and a tail. The body of the stent has a renal section intended to be placed in a kidney of a patient, a ureteral section intended to be placed in at least part of a ureter of the patient, and a proximal section arranged at a proximal end of the body of the stent. The tail has at least one thread intended to end in the bladder of the patient. The proximal section (16) has a flexibility greater than the flexibility of the ureteral area of the stent.