Can UTI Happen After Kidney Stone Surgery?

Yes. A UTI can occur after kidney stone surgery, particularly after procedures involving urinary tract instrumentation or temporary catheter or stent placement. However, some urinary discomfort or blood in the urine can be expected during recovery, so persistent or worsening symptoms should be evaluated to determine whether an infection or another complication is present.

Kidney stone procedures such as RIRS, ureteroscopy (URS), PCNL, and ESWL can involve manipulation of the urinary tract. Depending on the procedure, a ureteral stent or urinary catheter may also be placed temporarily. These factors can increase the risk of urinary infection.

Why can a UTI occur after kidney stone surgery?

Possible factors include:

• Urinary tract instrumentation during the procedure.
• Temporary urinary catheter or ureteral stent placement.
• Bacteria already present in the urinary tract.
• A stone-associated infection.
• Temporary difficulty with urine drainage.
• Residual stone fragments or urinary obstruction in some cases.

What symptoms may indicate a UTI?

Possible symptoms include:

• Burning or pain while urinating.
• Increased urinary frequency or urgency.
• Cloudy or foul-smelling urine.
• Lower abdominal discomfort.
• Fever or chills.
• Back or side pain.
• Nausea, vomiting, or feeling significantly unwell.

Some blood in the urine, urinary frequency, urgency, or mild discomfort can occur temporarily after certain stone procedures, especially when a stent is present. These symptoms should therefore be interpreted in relation to the procedure and expected recovery.

How is a UTI diagnosed after kidney stone surgery?

If infection is suspected, the doctor may recommend:

• Urinalysis.
• Urine culture to identify bacteria and guide antibiotic selection.
• Blood tests when systemic infection is suspected.
• Ultrasound or CT imaging when obstruction, residual stones, or another complication needs to be assessed.

Is a UTI after stone surgery serious?

Not necessarily, but fever, chills, severe back or side pain, vomiting, confusion, or rapidly worsening symptoms require prompt medical attention.

An infected and obstructed urinary tract can become a serious condition. In such cases, treating the infection may not be sufficient if urine drainage is blocked; the obstruction may also need urgent management.

Can a UTI be prevented after kidney stone surgery?

Risk can be reduced through appropriate preoperative assessment, infection management when indicated, careful postoperative monitoring, and following instructions regarding catheters or ureteral stents. Patients should also attend scheduled follow-ups to assess stone clearance and urinary recovery.

SCI International Hospital

At SCI International Hospital, Dr. Gautam Banga evaluates patients who develop urinary symptoms after kidney stone procedures such as RIRS, URS, PCNL, or other stone treatments. When infection is suspected, appropriate urine testing and further assessment can help distinguish a UTI from expected postoperative symptoms and identify complications such as residual stones, urinary obstruction, or impaired urine drainage.