Medically reviewed by Dr. Griffin M, MBBS, MS (General Surgery), MCh (Urology). Specialist in Urology, Andrology & Kidney Transplant Surgery | Last reviewed: September 2026
Kidney stones are one of the most common urinary conditions worldwide, with studies suggesting that roughly one in ten adults will experience one at some point in their life. These hard mineral deposits form inside the kidneys when substances in urine, such as calcium, oxalate, and uric acid, crystallize instead of staying dissolved. Some stones pass unnoticed, while others cause sudden, severe pain and block the flow of urine, turning an ordinary day into an emergency room visit.
Patients seeking kidney stone treatment in Chennai have access to modern imaging, laser-based procedures, and minimally invasive surgical options. Dr. Griffin M, a specialist in urology, can evaluate the stone’s size, location, and severity and recommend an appropriate treatment approach. This guide explains what kidney stones are, why they form, how they are diagnosed, and the treatment options available today.
What Are Kidney Stones?
Kidney stones are hard, crystalline deposits formed from minerals and waste products naturally present in urine. Normally, urine contains substances that keep these minerals dissolved and prevent crystals from forming. Dehydration, excess salt intake, and metabolic imbalances can disrupt this balance, allowing crystals to bind together and gradually grow into stones.
Stones vary widely in size, from tiny grains that pass unnoticed to larger masses that block the ureter and cause intense pain. Modern lifestyle factors, including low water intake, processed food consumption, obesity, and inactivity, have contributed to a steady rise in kidney stone cases over recent decades, especially in urban areas where hot climates and busy schedules make it easy to fall behind on hydration. Left untreated, stones can lead to infection, urinary obstruction, and reduced kidney function, which is why timely evaluation matters even when symptoms seem mild at first.
Symptoms of Kidney Stones
Symptoms typically appear once a stone begins moving within the urinary tract. Common signs include:
- Severe flank pain. Intense pain in the side and back, below the ribs, often coming in waves and radiating toward the lower abdomen and groin.
- Blood in urine. Irritation from the stone can cause urine to appear pink, brown, or red.
- Burning during urination. Pain or a burning sensation as the stone nears the bladder.
- Frequent urination. An increased urge to urinate, even when little is passed each time.
- Cloudy or foul-smelling urine. Often a sign of an associated urinary tract infection.
- Nausea and vomiting. A common response to the intensity of stone-related pain.
- Fever and chills. A warning sign of infection that requires prompt medical attention.
When to Seek Immediate Medical Attention
Certain symptoms indicate a medical emergency and should never be ignored. Seek urgent care if you experience:
- Severe, unbearable pain
- Fever accompanied by chills
- Difficulty passing urine
- Persistent vomiting
- Heavy blood in the urine
- A sudden drop in urine output
- Severe burning during urination
Delaying care in these situations raises the risk of kidney infection and serious urinary blockage.
What Causes Kidney Stones?
Stones form when urine carries an excess of crystal-forming substances such as calcium, oxalate, and uric acid. Contributing factors include:
- Dehydration. Concentrated urine, caused by insufficient water intake, speeds up crystal formation.
- High sodium intake. Excess salt raises calcium levels in urine, encouraging stone growth.
- Excess animal protein. Red meat, seafood, and poultry can raise uric acid and lower citrate, a natural stone inhibitor.
- Oxalate-rich foods. Spinach, nuts, chocolate, and beets can increase calcium oxalate stone risk in susceptible individuals.
- Obesity and inactivity. Excess weight alters urine chemistry and raises overall stone risk.
- Family history. A family history of kidney stones increases individual risk.
- Recurrent urinary infections. Frequent infections can lead to a specific type of stone called struvite.
Types of Kidney Stones
Different stone types call for different treatment and prevention strategies:
- Calcium oxalate stones. The most common type, forming when calcium binds with oxalate in concentrated urine.
- Calcium phosphate stones. Usually linked to alkaline urine and certain metabolic conditions.
- Uric acid stones. They form in highly acidic urine and are more common with diets rich in meat and seafood.
- Struvite stones. Associated with urinary tract infections and capable of growing quickly.
- Cystine stones. A rare type caused by an inherited genetic disorder.
How Kidney Stones Are Diagnosed
Accurate diagnosis helps determine a stone’s size, location, and severity before treatment:
- CT scan. The most accurate imaging method for detecting kidney stones.
- Ultrasound. A radiation-free option often used for pregnant patients or when repeated imaging is needed.
- X-ray. Can identify certain stone types visible on abdominal imaging.
- Urinalysis. Detects blood, infection, and crystals in the urine.
- Blood tests. Assess kidney function and mineral levels that may be contributing to stone formation.
Conservative Treatment for Small Stones
Small stones often pass naturally with supportive care rather than surgery:
- Increased water intake. Higher fluid intake helps flush smaller stones out naturally.
- Pain relief medication. Anti-inflammatory medicines help manage discomfort during passage.
- Medical expulsive therapy. Alpha-blockers relax the ureter’s muscles, making it easier for a stone to pass.
- Dietary adjustments. Reducing sodium and maintaining balanced calcium intake can limit further stone growth.
Shock Wave Lithotripsy (ESWL)
Extracorporeal Shock Wave Lithotripsy is a non-invasive option used for medium-sized stones. Shock waves are focused on the stone from outside the body, breaking it into smaller fragments that pass naturally. Benefits include:
- No surgical incision
- Minimal recovery time
- Reduced pain compared to surgery
- A short hospital stay for suitable candidates
Ureteroscopy and RIRS
Ureteroscopy involves passing a narrow scope through the urinary tract to locate and treat stones directly. Retrograde Intrarenal Surgery, or RIRS, uses a flexible scope combined with laser technology to treat stones without any external incisions. Advantages include:
- A scarless procedure
- Faster recovery than open surgery
- Less pain and shorter hospitalization
- High precision, which has made RIRS a preferred option for many patients seeking kidney stone treatment in Chennai
PCNL Surgery
Percutaneous Nephrolithotomy, or PCNL, is used for very large or complex stones. A small incision is made in the back to access the kidney directly, allowing the surgeon to remove the stone. Benefits include:
- High effectiveness for large stones
- Strong overall stone clearance in a single procedure
- Faster symptom relief for patients with complex presentations
Laser Kidney Stone Treatment
Laser therapy is one of the most advanced techniques available for stone removal. Holmium laser technology breaks stones into fine particles that can be removed or passed naturally with far less trauma to surrounding tissue. Benefits include:
- Precise fragmentation of even hard stones
- Minimal bleeding during the procedure
- Faster healing and reduced post-operative pain
- A quicker return to normal daily activity
Why Choose a Specialised Hospital for Kidney Stone Treatment
Choosing an experienced hospital for kidney stone care makes a real difference in outcomes:
- Experienced specialists who provide accurate diagnosis and treatment tailored to each patient
- Advanced technology, including high-quality imaging and minimally invasive surgical equipment for precise, safer procedures
- Customised treatment plans selected based on stone size, location, and overall patient health
- Faster recovery through modern minimally invasive techniques that reduce hospital stay and improve comfort
- Emergency care availability for immediate management of severe pain or suspected infection
Recovery After Kidney Stone Treatment
Recovery time depends on the treatment method used and the patient’s overall health. A few practical steps support healing:
- Drink sufficient water daily
- Follow prescribed medications as directed
- Avoid heavy lifting during initial recovery
- Attend all scheduled follow-up visits
- Follow dietary recommendations closely
Most patients who undergo minimally invasive procedures are able to resume normal activities within a short period.
Dietary Tips for Kidney Stone Prevention
Diet plays a significant role in reducing the chance of future stones:
- Drink plenty of water to dilute urine and lower the concentration of crystal-forming substances
- Reduce salt intake to help limit calcium buildup in urine
- Limit oxalate-rich foods such as spinach, nuts, and chocolate if you’re prone to calcium oxalate stones
- Maintain balanced calcium intake, since adequate dietary calcium can actually reduce oxalate absorption in the gut
- Cut back on sugary drinks, which have been linked to a greater risk of stone formation
- Include citrus fruits such as lemon and orange, which contain citrate to help prevent crystal formation
Lifestyle Changes to Prevent Recurrence
Beyond diet, a few lifestyle habits support long-term prevention:
- Maintaining a healthy body weight lowers overall stone risk
- Staying physically active supports better metabolic and urinary health
- Extra hydration is important during hot weather, when fluid loss increases and urine becomes more concentrated
- Patients with a previous stone episode should schedule regular checkups, since recurrence is common without ongoing monitoring
Complications of Untreated Kidney Stones
Ignoring kidney stones can lead to serious complications:
- Blocked urine flow can trigger infection and fever
- Urinary obstruction may cause pressure buildup and swelling inside the kidney
- Long-term obstruction can gradually damage kidney tissue and reduce function
- Untreated stones raise the risk of recurrent urinary tract infections
Timely consultation with a urologist helps prevent these outcomes before they develop.
Advantages of Minimally Invasive Procedures
Modern treatment approaches offer clear benefits over traditional open surgery:
- Smaller incisions that reduce tissue damage
- Advanced laser technology that minimises bleeding
- Shorter hospital stays that often allow same-day or short-term discharge
- A faster overall return to daily activities
Conclusion
Kidney stones can cause significant pain and serious urinary complications when left untreated, but early diagnosis and modern minimally invasive procedures have transformed treatment outcomes and patient comfort. Kidney stone management in Chennai combines advanced laser techniques with specialised expertise to support both immediate relief and long-term prevention. Proper hydration, dietary guidance, and regular follow-up visits all play a part in reducing the risk of future stones. If you are experiencing symptoms or want guidance on prevention, scheduling a consultation with a urologist is the right first step.
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