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Kidney Stones: Symptoms, Treatment & When to See a Urologist

Kidney Stones: Symptoms, Treatment & When to See a Urologist
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Category: Urology

Author: VSH Hospital

Author Designation: Urology

Blog Tags

kidneystones

urinarystones

urology

Posted on: September 10, 2026

Kidney Stones: Symptoms, Treatment & When to See a Urologist

Kidney stones are hard, pebble-like deposits that can develop inside the kidneys when certain minerals and substances in urine become concentrated and form crystals.

Some small kidney stones may pass through the urinary tract without causing significant symptoms. Larger stones can become stuck, block urine flow, and cause severe pain or other complications.

Understanding the symptoms of kidney stones and knowing when to consult a urologist can help you receive appropriate treatment at the right time.

What Are Kidney Stones?

Kidney stones are solid deposits that form when certain substances in urine become highly concentrated and crystallize. Stones can vary considerably in size and shape.

A small stone may pass naturally through the urinary tract, while a larger stone may become lodged in the kidney or ureter and interfere with the normal flow of urine.

What Causes Kidney Stones?

Kidney stones can form when urine contains high levels of certain minerals or substances that can form crystals.

Factors that may contribute to stone formation include:

  • Not drinking enough fluids
  • High concentrations of certain minerals in the urine
  • Dietary factors
  • Family history of kidney stones
  • Previous kidney stones
  • Certain medical conditions
  • Some medications
  • Repeated urinary tract infections in some cases

The exact risk factors can vary depending on the type of kidney stone. The four major types include calcium stones, uric acid stones, struvite stones, and cystine stones.

Common Symptoms of Kidney Stones

Kidney stones do not always cause symptoms. However, symptoms may appear when a stone moves through the urinary tract or becomes stuck.

Common symptoms include:

  • Sharp pain in the back or side
  • Pain that may move toward the lower abdomen or groin
  • Pain that comes and goes or changes in intensity
  • Blood in the urine
  • Pain or burning during urination
  • Frequent urge to urinate
  • Nausea or vomiting
  • Cloudy or foul-smelling urine, particularly when infection is present

Symptoms can vary depending on the size and location of the stone.

When Should You See a Urologist?

You should consider medical evaluation if you experience symptoms that may indicate a kidney stone, especially persistent or severe pain, blood in the urine, or difficulty passing urine.

Urgent medical attention is particularly important when kidney stone symptoms occur together with:

  • Fever or chills
  • Severe or worsening pain
  • Repeated vomiting or inability to keep fluids down
  • Blood in the urine
  • Difficulty passing urine
  • Symptoms suggesting a urinary infection

A blocked urinary tract combined with infection can become a serious medical problem and requires prompt medical assessment.

How Are Kidney Stones Diagnosed?

A doctor or urologist may use your symptoms and medical history along with physical examination and diagnostic tests to determine whether you have a kidney stone.

Depending on the situation, evaluation may include:

  • Urine tests
  • Blood tests
  • Ultrasound
  • CT imaging
  • Other urinary tract imaging when appropriate
  • Analysis of a passed or removed stone

Testing can help identify the size, location, and possible cause of the stone and can help doctors decide on the most appropriate treatment.

Kidney Stone Treatment

Treatment depends on several factors, including the stone's size, location, composition, symptoms, and whether it is blocking urine flow or causing complications.

Observation and Natural Passage

Some small kidney stones may pass naturally through the urinary tract. Depending on the patient's condition, a healthcare professional may recommend fluids, pain management, and monitoring.

Patients should follow their healthcare professional's advice because not every stone can or should be managed at home.

Shock Wave Lithotripsy

Shock wave lithotripsy, commonly known as SWL, uses focused shock waves to break a kidney stone into smaller fragments. The smaller fragments can then pass through the urinary tract.

The suitability of this treatment depends on factors such as stone size, location, and the patient's medical condition.

Ureteroscopy

During ureteroscopy, a thin instrument called a ureteroscope is passed through the urinary tract to locate the stone. The stone may then be removed or broken into smaller pieces.

A temporary ureteral stent may sometimes be placed to help urine flow after treatment, depending on the clinical situation.

Percutaneous Nephrolithotomy

Percutaneous nephrolithotomy, or PCNL, is a procedure used to remove certain larger or complex kidney stones. A small opening is made through the back to allow specialized instruments to reach and remove the stone.

PCNL may be recommended for selected larger stones or stones that are difficult to treat with other approaches.

Can Kidney Stones Come Back?

Yes. People who have had kidney stones may develop them again. The risk of recurrence can depend on the type of stone, underlying medical conditions, dietary factors, fluid intake, and other individual factors.

Understanding what caused the previous stone can help a healthcare professional recommend appropriate preventive measures.

How Can You Help Prevent Kidney Stones?

Prevention depends on the type of kidney stone and individual health factors, but maintaining adequate hydration is an important part of preventing many types of stones.

  • Drink adequate fluids according to your healthcare professional's advice.
  • Prefer water as the main source of hydration.
  • Follow dietary recommendations based on your type of kidney stone.
  • Manage medical conditions that may increase stone risk.
  • Take preventive medicines only when prescribed.
  • Follow up with your healthcare professional if you have recurrent stones.

People with certain health conditions may need individualized fluid or dietary recommendations, so it is important not to follow extreme hydration or dietary plans without medical guidance.

Kidney Stone Diet: What Should You Know?

There is no single diet that is appropriate for every person with kidney stones. Dietary recommendations depend on the type of stone and the individual's health history.

Depending on the situation, healthcare professionals may discuss factors such as sodium, animal protein, calcium, oxalate, and fluid intake.

If you have recurrent kidney stones, your doctor may recommend testing to better understand why stones are forming and to develop a personalized prevention plan.

Frequently Asked Questions

Can a kidney stone pass on its own?

Some small stones can pass naturally, but whether a stone is likely to pass depends on factors such as its size and location. A healthcare professional can help determine the safest approach.

Is kidney stone pain always severe?

No. Some kidney stones cause little or no pain, particularly when they are small and not blocking urine flow. Larger or obstructing stones can cause severe pain.

Can kidney stones cause blood in urine?

Yes. Kidney stones can cause blood in the urine because they may irritate or damage the urinary tract as they move.

When is kidney stone treatment urgent?

Severe pain, fever or chills, vomiting, difficulty passing urine, or other signs of infection or obstruction require prompt medical evaluation.

Which doctor treats kidney stones?

A urologist specializes in conditions affecting the urinary system and can evaluate and treat many types of kidney stones. Depending on the patient's condition, other medical specialists may also be involved.

Can drinking water prevent kidney stones?

Adequate fluid intake can help reduce the concentration of substances that form many kidney stones. However, the amount of fluid needed varies between individuals, particularly for people with certain medical conditions.

Conclusion

Kidney stones are common urinary tract problems that can range from small stones that pass naturally to larger stones that cause severe pain or obstruction.

Recognizing symptoms such as sharp back or side pain, blood in the urine, painful urination, nausea, or vomiting can help you seek medical attention promptly.

If symptoms are severe or accompanied by fever, chills, repeated vomiting, or difficulty passing urine, seek medical care without delay. A urologist can assess the stone and recommend an appropriate treatment plan based on its size, location, and your overall health.

Medical Disclaimer: This article is intended for general health education and does not replace professional medical advice, diagnosis, or treatment. If you have severe pain, fever, vomiting, blood in the urine, difficulty passing urine, or other concerning symptoms, seek medical evaluation promptly.

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