Best Urologists for Retrograde Intrarenal Surgery (RIRS) in Mumbai, India

Kidney stones (nephrolithiasis or urolithiasis) are solid concretions that develop in the kidneys when dissolved minerals in urine crystallize and aggregate, and they can remain in the kidney or travel into the ureter or bladder.

Stones that obstruct the urinary tract typically produce sudden, severe flank or lower-back pain that may radiate to the groin (renal colic), along with nausea, vomiting, blood in the urine (haematuria), and an urgent or burning sensation when urinating. Fever and chills alongside these symptoms may indicate an infected or obstructed system, which is a medical emergency requiring prompt attention. It is important to note that experiencing any combination of these symptoms does not in itself confirm a kidney stone diagnosis, as other conditions can produce very similar presentations.

Diagnosis typically begins with a clinical history and physical examination, followed by urine analysis to detect blood, infection, or crystal types, and blood tests to check kidney function and metabolic markers such as calcium, uric acid, and creatinine. Non-contrast CT of the abdomen and pelvis (NCCT) is currently the most accurate imaging method for detecting stone size, number, density (measured in Hounsfield units), and location—all of which directly influence treatment planning. When recurrent stones are a concern, a 24-hour urine collection and stone composition analysis (if a stone is recovered) help identify the underlying metabolic cause and guide long-term prevention; a qualified urologist will determine which investigations are appropriate for each individual.

The most appropriate management depends on factors including stone size, location, density, kidney anatomy, the patient's overall health, and the presence of infection or obstruction, and must be determined through individual assessment by a urologist. Small stones (generally under 6 mm) that are not causing obstruction are frequently managed conservatively, while larger or symptomatic stones may require a procedural intervention such as extracorporeal shock wave lithotripsy (ESWL), retrograde intrarenal surgery (RIRS), or percutaneous nephrolithotomy (PCNL) for complex or large-volume stones. No single approach is universally superior, and the treating specialist will weigh the evidence alongside each patient's specific circumstances.

Many small, uncomplicated kidney stones can be managed without a procedure through high fluid intake (typically targeting urine output greater than 2 litres per day), dietary modifications tailored to stone type (such as reducing sodium, animal protein, or oxalate-rich foods), and in some cases alpha-blocker medications to facilitate spontaneous stone passage. Medical management also includes treating any underlying metabolic disorder—for example, thiazide diuretics for hypercalciuria or allopurinol for uric acid stones—to reduce the risk of new stone formation. Monitoring with periodic imaging may be recommended for stones that are stable and not causing symptoms, obstruction, or kidney damage; whether watchful waiting is appropriate is a decision for a qualified clinician based on full assessment.

Retrograde intrarenal surgery (RIRS) may be considered only when it is appropriate for the confirmed diagnosis and the expected benefit outweighs the individual risks. The decision may depend on symptom severity, investigation results, previous treatment, overall health and the patient's goals. A specialist should discuss alternatives and recovery before any procedure is planned.

Kidney stones are primarily evaluated and managed by a urologist, who has specialist training in the surgical and non-surgical management of the urinary tract. In cases involving significant metabolic or systemic conditions contributing to stone formation, a nephrologist (kidney medicine specialist) may collaborate to address the underlying cause.

When selecting a urologist for kidney stone management, it is worth comparing their experience with the full range of stone treatment procedures—ESWL, RIRS, and PCNL—as well as their access to advanced imaging (including CT stone analysis), their hospital's endourology facilities, and their approach to post-treatment follow-up and recurrence prevention. Asking about the volume of similar cases managed annually and whether metabolic stone workup is offered within the same care team can also help you make a more informed comparison.

Share a concise medical summary, symptom timeline, previous diagnoses, investigation and imaging reports, procedure or biopsy reports where relevant, current medicines, allergies and related treatment records. Provide clear copies with translations when needed. The reviewing doctor may request additional information before giving an opinion.

Our care coordination team can review the initial information, help identify suitable doctors and hospitals, request a medical opinion where available, explain next steps and indicative cost information, and support practical planning before travel. A remote opinion does not replace an in-person examination or emergency care.