Urinary tract infections related to kidney stones
Breaking the vicious cycle of kidney stones and infections
Discover how urinary stones can cause urinary tract infections and how to treat them effectively with Dr. Sébastien Dominique, urologist in Paris.

Introduction
Urinary tract infections can be caused or worsened by the presence of kidney stones. When a stone partially or completely blocks the flow of urine, it creates an environment conducive to bacterial growth. These infections can range from simple cystitis to more serious forms such as acute pyelonephritis. If left untreated, they can lead to significant complications. Appropriate management allows for the identification of the infectious source, the removal of the responsible stone, and the prevention of recurrence.
What are the indicative symptoms?

What are the common causes?
1. Classical uropathogenic bacteria
Escherichia coli, Proteus, enterococci… Multi-resistant germs in case of recurrence.
2. Urinary stones
Local irritation + obstruction followed by superinfection.
3. Anatomical Obstacles
Narrowing of the urethra or ureter, prostate adenoma, valves, diverticula, malformations
4. Chronic prostatitis
A low-grade infection that can maintain symptoms.
5. Vesicoureteral reflux
Ascent of infected urine towards the kidneys.
6. Bladder emptying disorders
Stagnant urine, repeated infections. Aggravating factors : diabetes, immunosuppression, insufficient hydration, repeated urinary catheterizations.
Assessment and recommended examinations
Experience
Academic background

What treatments are available for an infection related to a kidney stone?
Why consult a specialist urologist?
My journey
Let me introduce you to my background, my expertise in urology and the methodical way in which I support each patient, from the first consultation to personalized follow-up.
Do you suffer from burning during urination, or recurring burns?
Don’t let these symptoms become chronic. Dr. Sébastien Dominique offers a personalized approach, based on a comprehensive assessment, tailored treatment, and regular follow-up. Urology Practice Paris Opéra – Paris 17th Arrondissement. In-person or teleconsultation available. Book your appointment today.
FAQ – Frequently Asked Questions
Why do kidney stones promote urinary tract infections?
A kidney stone obstructs the flow of urine and provides a surface on which bacteria adhere and multiply, protected from antibiotics. As long as the stone remains, the infection tends to recur.
What are the signs of a kidney stone infection?
Burning during urination, cloudy or foul-smelling urine, fever, and lower back pain. The combination of fever and renal colic suggests obstructive pyelonephritis: this is an absolute emergency requiring kidney drainage.
Why is it necessary to treat the stone and not just the infection?
Antibiotics do not penetrate the core of the stone, where bacteria persist. Without complete removal of the stone, infections recur, and some stones (struvite) even grow larger due to the infection.
How does the care process work?
The infection is initially treated with antibiotics, with emergency kidney drainage (JJ stent) if necessary. The stone is then removed, once the urine has been sterilized, usually by laser ureteroscopy. Follow-up appointments are then scheduled to check for recurrence.
Dr Sébastien Dominique's expertise
Chirurgien Urologue à Paris
Urinary tract infections related to kidney stones: there are solutions.