Is a Double J Stent Necessary After Kidney Stone Surgery?

After kidney stone or ureteral stone surgery, it is standard practice to place a double J (DJ) stent. This is because small stone fragments or residual particles may remain following the procedure. Without a stent, these fragments could potentially block the ureter, leading to discomfort or more serious complications.

During surgery, the ureteral mucosa may become irritated or bleed, which can result in blood clots that block the ureter. Additionally, repeated manipulation of the ureter during the procedure may cause swelling of the mucosa. If the kidney is infected, it may produce pus-like debris, which can also obstruct the ureter and impair kidney function.

To prevent such issues, a DJ stent is typically placed to ensure proper drainage and reduce the risk of postoperative complications such as pain, hydronephrosis (swelling of the kidney), and long-term ureteral stricture. Even small stones can pose a risk if left unmanaged, making the stent an important protective measure.

Failure to place a stent in cases involving ureteral injury increases the likelihood of future narrowing of the ureter. This can lead to chronic issues and, in severe cases, life-threatening complications. Therefore, placing a DJ stent supports healing and helps maintain the structural integrity of the urinary tract post-surgery.