Renal colic is a type of intense pain that commonly occurs when a kidney stone moves into the ureter and interferes with the normal flow of urine. The pain can begin suddenly and may fluctuate in intensity as the stone moves.

Although kidney stones are a common cause of renal colic, the condition should not be managed by focusing on pain alone. A blocked urinary tract can sometimes lead to infection or impaired kidney function, making timely evaluation important.

The appropriate renal colic treatment depends on the size and location of the stone, severity of symptoms, degree of obstruction, presence of infection and the patient's overall health.

At Prabhakar Bhurke Clinic, Dr. Sandip Prabhakar Bhurke, super specialist nephrologist and transplant physician, provides specialist evaluation and management of kidney-related conditions.

What Is Renal Colic?

Renal colic describes severe pain caused by obstruction of urine flow, most commonly from a kidney stone traveling through the ureter.

The ureter is a narrow tube that carries urine from the kidney to the bladder. When a stone becomes lodged in this passage, pressure can build up above the obstruction.

The ureter may also contract around the stone, contributing to the characteristic waves of severe pain.

What Does Renal Colic Feel Like?

Renal colic often has a distinctive pattern.

The pain may:

• Start suddenly
• Be severe or cramping
• Begin in the side or back
• Spread toward the lower abdomen
• Move toward the groin
• Come in waves
• Change location as the stone moves

Some people also experience:

• Nausea
• Vomiting
• Sweating
• Restlessness
• Burning while urinating
• Increased urinary frequency
• Blood in the urine

The symptoms vary depending on the stone's location and degree of obstruction.

What Causes Renal Colic?

The most common cause is a urinary stone.

Kidney stones can form from minerals and salts present in urine. Different types include:

• Calcium stones
• Uric acid stones
• Struvite stones
• Cystine stones

A stone causes renal colic when it moves into the ureter and obstructs urine flow.

Other forms of urinary obstruction can cause similar symptoms, although they are less common causes of classic renal colic.

Renal Colic and Kidney Stones

Not every kidney stone causes renal colic.

A stone may remain inside the kidney without causing noticeable symptoms. Severe pain is more likely when a stone enters the ureter and obstructs urine drainage.

This is why stone size and location are important when deciding whether observation or an intervention is appropriate.

How Is Renal Colic Diagnosed?

A doctor may use a combination of symptoms, physical examination, urine testing, blood tests and imaging.

Urine examination

Urinalysis can help identify:

• Blood
• White blood cells
• Signs of infection
• Other urinary abnormalities

Blood tests

Depending on the situation, blood tests may evaluate:

• Creatinine
• Kidney function
• Electrolytes
• Blood counts
• Signs of infection or inflammation

Ultrasound

Ultrasound can identify urinary tract dilation and may detect some kidney or urinary stones.

CT imaging

A non-contrast CT scan is frequently used when detailed assessment of a suspected urinary stone is necessary. It can help determine the stone's size, location and degree of obstruction.

The most appropriate imaging depends on the individual patient.

Renal Colic Treatment for Pain Relief

Pain control is an important part of managing renal colic.

Healthcare professionals may recommend appropriate pain-relieving medicines based on the patient's medical history, kidney function, allergies and other factors.

Anti-inflammatory pain medicines are commonly used for renal colic when medically appropriate. In some circumstances, other pain medicines may be required.

Patients with kidney disease, stomach ulcers, blood-thinning medication use or other medical conditions should not self-medicate with painkillers without professional guidance.

Can a Kidney Stone Pass Without Surgery?

Yes, some stones can pass naturally.

The likelihood of spontaneous passage depends on factors such as:

• Stone size
• Stone location
• Ureter anatomy
• Degree of obstruction
• Previous stone history

Smaller stones are generally more likely to pass than larger stones.

However, waiting for spontaneous passage is not appropriate in every situation.

Medicines Used During Renal Colic Treatment

Depending on the circumstances, a doctor may prescribe medicines for:

• Pain control
• Nausea and vomiting
• Urinary symptoms
• Selected patients to facilitate stone passage

Medication choices should be individualized.

A medicine that is appropriate for one patient may be unsuitable for another, particularly when kidney function is reduced or other medical conditions are present.

When Is a Procedure Needed?

A stone may require procedural treatment when it:

• Is unlikely to pass naturally
• Causes persistent severe pain
• Produces significant obstruction
• Causes recurrent urinary infections
• Leads to worsening kidney function
• Remains in the ureter
• Is associated with complications

Several procedures may be considered depending on the stone.

Ureteroscopy

A thin instrument is passed through the urinary tract to reach the stone.

The stone can be removed or fragmented using appropriate instruments, including laser technology.

Laser stone treatment

Laser energy can break a stone into smaller fragments during ureteroscopy.

This technique can be used for selected ureteral and kidney stones.

Shock wave lithotripsy

Shock waves generated outside the body are used to fragment selected stones.

Its suitability depends on stone size, location and patient-specific factors.

Percutaneous nephrolithotomy

PCNL may be recommended for larger or complex kidney stones.

The kidney is accessed through a small tract created through the skin, allowing the stone to be removed or fragmented.

Renal Colic With Infection Can Be an Emergency

One of the most important complications is an infected obstructed urinary tract.

If a stone blocks urine flow while an infection is present, the infection may become serious and can potentially spread into the bloodstream.

Warning signs include:

• Fever
• Chills
• Severe flank pain
• Vomiting
• Weakness
• Confusion
• Reduced urine output

A blocked infected urinary system may require urgent drainage and medical treatment rather than simply waiting for the stone to pass.

How Long Does Renal Colic Last?

The duration varies.

Pain may continue until:

• The stone moves
• The stone passes
• The obstruction is relieved
• A procedure removes the stone

Some episodes may resolve relatively quickly, while others persist or recur.

Persistent pain should be medically assessed rather than repeatedly treated with home pain remedies.

Does Drinking Water Stop Renal Colic?

Drinking an appropriate amount of fluid may be part of kidney stone management, but drinking large quantities of water does not necessarily relieve an acute obstruction.

If a ureter is significantly blocked, excessive fluid intake will not physically remove the obstruction.

People with kidney failure, heart problems or certain other conditions may also have specific fluid restrictions.

Follow individualized medical advice rather than forcing fluids during severe renal colic.

What Happens After the Stone Passes?

Passing the stone does not necessarily mean the underlying risk has disappeared.

People who have had kidney stones may be at risk of developing additional stones.

After an episode, a healthcare professional may consider:

• Stone analysis
• Blood tests
• Urine testing
• Review of dietary habits
• Assessment of fluid intake
• Evaluation for metabolic risk factors

Preventive measures can then be tailored to the type of stone and individual risk profile.

How Can Renal Colic Be Prevented?

Prevention depends on the underlying stone type.

General measures may include:

Appropriate hydration

Adequate fluid intake can help dilute urine and reduce the concentration of stone-forming substances for many people.

Reduce excessive sodium

High dietary sodium can increase urinary calcium in some individuals.

Maintain a balanced diet

Extreme dietary restrictions are generally not appropriate without identifying the type of stone and individual risk factors.

Manage medical conditions

Conditions such as gout, diabetes and certain metabolic disorders may influence stone formation.

Follow specialist advice after recurrent stones

People with repeated stones may benefit from a more detailed metabolic evaluation.

When Should You See a Doctor for Renal Colic?

Medical evaluation is especially important when:

• Pain is severe
• Pain persists despite prescribed treatment
• You have fever or chills
• You are vomiting repeatedly
• You have difficulty urinating
• Urine output decreases significantly
• There is visible blood in the urine
• You have only one functioning kidney
• You have known kidney disease
• You are pregnant
• You have a known urinary obstruction

These circumstances may require prompt investigation.

Renal Colic in People With Existing Kidney Disease

People who already have reduced kidney function should be particularly cautious about urinary obstruction.

A stone that obstructs urine flow can potentially worsen kidney function, especially when both kidneys are affected or when there is only one functioning kidney.

Pain medicines also need to be selected carefully in people with kidney disease.

Specialist evaluation can help balance pain management with kidney protection.

Frequently Asked Questions

What is the fastest treatment for renal colic?

The immediate priority is usually appropriate pain control and assessment of the cause. If a stone is causing significant or persistent obstruction, a procedure may be needed to restore urine flow or remove the stone.

Can renal colic go away on its own?

Yes, some stones pass naturally. However, persistent or severe symptoms require medical assessment because not every obstructing stone will pass without intervention.

Is renal colic always caused by kidney stones?

Kidney stones are the most common cause, but similar pain can have other causes. Appropriate examination and imaging help determine the diagnosis.

Does renal colic damage the kidney?

A short episode does not necessarily cause permanent damage. However, prolonged or severe obstruction can impair kidney function, particularly when complicated by infection.

Can laser treatment remove a stone causing renal colic?

Laser fragmentation can be performed during ureteroscopy for selected stones. The appropriate procedure depends on stone size, location and patient factors.

Should I drink lots of water during renal colic?

Do not force excessive amounts of water. Fluid advice should take into account the degree of obstruction, kidney function and other health conditions.

Kidney Stone and Renal Care at Prabhakar Bhurke Clinic

At Prabhakar Bhurke Clinic, Dr. Sandip Prabhakar Bhurke provides specialist assessment for patients with kidney and urinary tract concerns.

Evaluation may include:

• Clinical assessment of pain
• Kidney function testing
• Urine examination
• Ultrasound or CT imaging when appropriate
• Assessment of urinary obstruction
• Kidney stone risk evaluation
• Monitoring of kidney function
• Guidance regarding appropriate specialist treatment

Where a stone requires an intervention, coordination with an appropriately qualified urological specialist may be recommended.

Conclusion

Renal colic treatment is more than simply controlling pain. The underlying cause, particularly a urinary stone, needs to be identified and assessed for obstruction, infection and potential effects on kidney function.

Some stones can pass naturally, while others may require ureteroscopy, laser treatment, shock wave lithotripsy or another procedure. Prompt evaluation is particularly important when severe pain occurs alongside fever, reduced urine output or other warning signs.

For specialist evaluation of kidney health and renal colic related concerns, patients can consult Dr. Sandip Prabhakar Bhurke at Prabhakar Bhurke Clinic.

Medical Disclaimer

This article is provided for general educational purposes and does not constitute medical advice, diagnosis or treatment. Renal colic can have different causes, and the appropriate treatment depends on the underlying condition, stone characteristics, kidney function and overall health. Do not self-medicate or take large quantities of painkillers or fluids without appropriate medical guidance. Severe pain accompanied by fever or chills, repeated vomiting, difficulty passing urine, very low urine output, confusion or worsening symptoms may require urgent medical attention. For an individualized diagnosis and treatment plan, consult Dr. Sandip Prabhakar Bhurke or another qualified healthcare professional.