Kidney Stone Problem Symptoms: 12 Signs of Kidney Stones You Should Know

Learn about kidney stone problem symptoms, including severe flank pain, blood in urine, nausea, vomiting and urinary changes. Know when kidney stone symptoms need urgent treatment.

22 Sep, 2026

A kidney stone can cause anything from no symptoms at all to sudden, severe pain. Many people first search for “kidney stone problem symptoms” when they experience intense pain in the side of the body, back, abdomen or groin.

Kidney stones are solid deposits that can form from substances present in urine. Whether a stone causes symptoms depends on several factors, including its:

  • Size

  • Location

  • Movement within the urinary tract

  • Effect on urine drainage

  • Presence of infection

A stone that remains inside the kidney may sometimes cause few or no symptoms. Symptoms often become more noticeable when a stone moves into the ureter or interferes with the normal flow of urine.

At Prabhakar Bhurke Clinic, Dr. Sandip Prabhakar Bhurke, super specialist nephrologist and transplant physician, provides kidney-function assessment and specialist evaluation for patients with kidney-related concerns, including stone-associated kidney complications.


1. Sudden Severe Pain in the Side or Back

One of the most recognized kidney stone symptoms is severe pain in the side or back, often around the area below the ribs.

The pain may:

  • Begin suddenly

  • Become intense

  • Come in waves

  • Change in intensity

  • Move from the back toward the lower abdomen or groin

This type of pain is often called renal colic.

The pain may occur when a stone moves through the urinary tract and causes irritation or obstruction.

However, not every episode of severe back or side pain is caused by a kidney stone.

Other medical conditions can produce similar symptoms.


2. Pain That Moves Toward the Lower Abdomen or Groin

As a stone moves through the ureter, the location of pain may change.

Pain can travel from the:

  • Flank

  • Back

  • Side

toward the:

  • Lower abdomen

  • Pelvic region

  • Groin

This changing pattern can occur as the stone moves downward through the urinary tract.

The exact symptoms can differ between individuals.


3. Blood in the Urine

A kidney stone can irritate the lining of the urinary tract and may cause blood to appear in the urine.

The urine may appear:

  • Pink

  • Red

  • Brownish

In some cases, blood is not visible to the naked eye and is only detected during urine testing.

Blood in the urine should not automatically be assumed to be caused by a kidney stone and should be medically evaluated.


4. Burning or Pain While Urinating

A stone that moves lower in the urinary tract may cause discomfort during urination.

Possible symptoms include:

  • Burning

  • Pain while passing urine

  • Discomfort in the urinary passage

These symptoms can also occur with urinary infections.

A urine test may be required to help identify the cause.


5. Frequent Urination

Some patients with kidney stones may feel the need to urinate more frequently.

They may experience:

  • Frequent trips to the bathroom

  • A persistent urge to urinate

  • Passing small amounts of urine

These symptoms may be more noticeable when a stone is located lower in the urinary tract.


6. Difficulty Passing Urine

A stone may interfere with urine flow depending on its size and location.

Symptoms may include:

  • Reduced urine flow

  • Difficulty passing urine

  • A feeling that urine is not passing normally

A significant reduction in urine output requires prompt medical assessment.


7. Nausea and Vomiting

Severe kidney stone pain can be associated with nausea and vomiting.

The urinary tract and digestive system can produce interconnected responses during intense pain.

Persistent vomiting can also lead to dehydration, which may worsen the patient's overall condition.

A person who cannot keep fluids down should seek medical advice.


8. Restlessness During Severe Pain

Kidney stone pain can be extremely intense.

Some people find it difficult to remain in one position and may feel restless or continuously change position.

This differs from certain types of musculoskeletal pain that may improve with rest or a particular posture.

However, pain patterns alone cannot confirm a kidney stone.


9. Cloudy or Unusual-Smelling Urine

Cloudy urine or an unusual smell can occur with dehydration or infection.

If a kidney stone is associated with a urinary infection, additional symptoms may occur.

These can include:

  • Burning urination

  • Fever

  • Chills

  • Feeling unwell

Urine changes should be interpreted in the appropriate medical context.


10. Fever and Chills

Fever or chills with suspected kidney stone symptoms can be a warning sign.

A urinary obstruction combined with infection can become medically serious.

Seek prompt medical attention if severe flank pain occurs with:

  • Fever

  • Chills

  • Vomiting

  • Weakness

  • Reduced urine output

An infected and obstructed urinary system may require urgent treatment.


11. Reduced Urine Output

A stone can sometimes obstruct urine drainage.

Possible warning signs include:

  • Passing very little urine

  • Significant reduction in urine volume

  • Difficulty passing urine

Very little or no urine should be treated as an urgent medical concern, particularly if associated with pain, swelling or worsening health.


12. Kidney Stone Symptoms Without Pain

Not every kidney stone causes severe pain.

Some stones may be discovered during:

  • Ultrasound

  • CT scan

  • Routine health evaluation

  • Investigation of another medical problem

A stone may remain relatively silent if it is not moving or causing significant obstruction.

This is why imaging findings should be evaluated even when symptoms are mild or absent.


Where Does Kidney Stone Pain Usually Occur?

Kidney stone pain can occur in different locations depending on where the stone is situated.

Kidney Area

A stone located within the kidney may cause discomfort in the back or flank.

Upper Ureter

Pain may be felt around the side of the body or upper abdomen.

Lower Ureter

As a stone moves downward, pain may shift toward the lower abdomen, pelvis or groin.

The location of pain alone cannot confirm the exact position of a stone.

Imaging may be required.


What Does Kidney Stone Pain Feel Like?

People can experience kidney stone pain differently.

The pain may be described as:

  • Sharp

  • Severe

  • Cramping

  • Wave-like

  • Sudden

  • Intermittent

Pain intensity can fluctuate.

Severe pain that repeatedly increases and decreases may occur when the urinary tract contracts around a stone.

However, self-diagnosis based on pain characteristics is not reliable.


Can Small Kidney Stones Cause Severe Symptoms?

Yes.

Stone size is not the only factor that determines how much pain a person experiences.

A relatively small stone can cause significant pain if it enters the ureter and interferes with urine drainage.

Conversely, some larger stones may cause relatively few symptoms while remaining in the kidney.

Location and obstruction are therefore important factors.


Can Kidney Stones Cause Kidney Damage?

A kidney stone can potentially affect kidney function when it causes:

  • Persistent urinary obstruction

  • Recurrent infection

  • Significant inflammation

  • Repeated episodes of blockage

The risk may increase when an obstruction is not recognized or treated appropriately.

Kidney-function tests may include:

  • Serum creatinine

  • eGFR

  • Electrolytes

The doctor may also evaluate urine findings and imaging reports.


Kidney Stone Symptoms Versus Urinary Infection Symptoms

Kidney stones and urinary infections can sometimes cause similar symptoms.

Both may be associated with:

  • Pain

  • Burning urination

  • Frequent urination

  • Blood in urine

However, infection may be more likely to cause:

  • Fever

  • Chills

  • Feeling unwell

A person can also have both a kidney stone and an infection.

When infection occurs together with urinary obstruction, urgent treatment may be required.


How Are Kidney Stones Diagnosed?

Symptoms can raise suspicion, but imaging is usually important for confirming a kidney stone.

Ultrasound

Ultrasound may identify many kidney stones and can help assess swelling caused by urinary obstruction.

CT Scan

A non-contrast CT scan can provide detailed information about:

  • Stone size

  • Stone location

  • Number of stones

  • Urinary obstruction

  • Urinary tract anatomy

Urine Examination

Urine testing may help identify:

  • Blood

  • Infection

  • Crystals

  • Other abnormalities

Blood Tests

Blood tests may be used to evaluate:

  • Kidney function

  • Creatinine

  • eGFR

  • Electrolytes

  • Signs of infection

The choice of investigations depends on the patient's symptoms and clinical situation.


What Should You Do When Kidney Stone Symptoms Start?

The appropriate response depends on the severity of symptoms.

If symptoms are mild, a doctor may recommend evaluation and appropriate testing.

Do not assume that every side or back pain is a kidney stone.

Avoid:

  • Taking unprescribed medicines excessively

  • Using unverified stone remedies

  • Drinking excessive amounts of water to force a stone out

Appropriate fluid intake and treatment should be individualized.

The correct treatment depends on stone size, location, symptoms, obstruction and infection status.


When Are Kidney Stone Symptoms an Emergency?

Seek urgent medical attention if suspected kidney stone symptoms are associated with:

  • Fever

  • Chills

  • Severe or worsening pain

  • Persistent vomiting

  • Very little or no urine

  • Severe weakness

  • Confusion

  • Rapid deterioration in health

Severe pain with fever should not be ignored.

An obstructed urinary tract with infection can require urgent medical assessment and treatment.


Kidney Stone Evaluation at Prabhakar Bhurke Clinic

At Prabhakar Bhurke Clinic, Dr. Sandip Prabhakar Bhurke, super specialist nephrologist and transplant physician, provides specialist kidney evaluation for patients with kidney-related symptoms and kidney-function concerns.

Depending on the patient's condition, evaluation may include:

  • Kidney-function assessment

  • Creatinine evaluation

  • eGFR assessment

  • Review of ultrasound reports

  • Review of CT scan findings

  • Assessment of urinary obstruction

  • Urine testing

  • Evaluation of recurrent kidney stones

  • Assessment of stone-related kidney complications

When a kidney stone requires a procedural or surgical approach, appropriate coordination with a urological specialist may be recommended.

Treatment planning depends on the patient's individual diagnosis and kidney health.


Frequently Asked Questions About Kidney Stone Problem Symptoms

What is the first symptom of a kidney stone?

Symptoms vary. Some people have no symptoms, while others first experience sudden flank or back pain.

Can kidney stones cause pain in the groin?

Yes. Pain may move from the flank or back toward the lower abdomen or groin as a stone moves through the ureter.

Can kidney stones cause frequent urination?

Yes. Stones located lower in the urinary tract may contribute to increased urinary frequency or urgency.

Does every kidney stone cause severe pain?

No. Some stones cause no symptoms and are discovered incidentally during imaging.

Can kidney stones cause blood in urine?

Yes. A stone can irritate the urinary tract and cause visible or microscopic blood in the urine.

When should I go to the hospital for kidney stone symptoms?

Seek urgent medical care for fever, chills, severe pain, persistent vomiting, very little or no urine, confusion or rapidly worsening symptoms.

Can a kidney stone affect creatinine?

A stone may contribute to abnormal kidney-function results if it causes significant urinary obstruction or affects kidney drainage.


Conclusion

Kidney stone problem symptoms can range from no symptoms to sudden and severe pain.

Common warning signs include flank or back pain, pain moving toward the groin, blood in urine, burning urination, frequent urination, nausea and vomiting.

The severity of symptoms does not always depend on stone size. Even a relatively small stone can cause intense pain if it obstructs the ureter, while some stones inside the kidney may remain silent.

Fever, chills, persistent vomiting or significantly reduced urine output together with suspected kidney stone symptoms require prompt medical attention.

Proper evaluation may include urine tests, kidney-function tests and imaging to determine the stone's size, location and effect on urine drainage.

For specialist kidney evaluation and management of kidney-related complications, consult Dr. Sandip Prabhakar Bhurke, super specialist nephrologist and transplant physician, at Prabhakar Bhurke Clinic.

Medical Disclaimer

This article is intended for general educational and informational purposes only and should not be considered medical advice, diagnosis or treatment. Symptoms such as flank pain, back pain, blood in urine, burning urination, nausea or vomiting can have causes other than kidney stones. The diagnosis and treatment of a suspected kidney stone require appropriate medical evaluation and, when necessary, urine tests, blood tests and imaging. Do not attempt to treat severe pain or force a suspected stone to pass with excessive fluid intake or unprescribed medicines. Seek urgent medical attention for fever, chills, severe or worsening pain, persistent vomiting, very little or no urine, confusion or sudden deterioration in health. Consult Dr. Sandip Prabhakar Bhurke or another qualified healthcare professional for individualized medical advice and treatment.

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