Kidney Stone Size Chart in MM and Treatment in India

Medically Reviewed by Dr. Aman Priya Khanna
Written by Charu Shrivastava, last updated on 15 June 2024| min read
Kidney Stone Size Chart in MM and Treatment in India

Quick Summary

Kidney stones are more common than you might think. They can cause immense discomfort and pain, leaving you desperately searching for relief. Kidney stone treatment depends on size, location, and type. But fear not; once you have a basic understanding of the kidney stone size chart, you can decide on effective treatment strategies with the help of your doctor.

Being aware of all of your options may aid you in diagnosing and treating kidney stone conditions. Continue reading to learn about the kidney stone size chart in mm, its causes, symptoms, the best ways to eliminate kidney stones, and more.

Here are three key takeaways from the article:

  • Kidney stones are small, hard deposits that form in the kidneys.
  • Kidney stones can cause pain, nausea, vomiting, and blood in the urine.
  • Treatment for kidney stones depends on the size, location, and type of stone.

Kidney stones, those pesky little rock-like formations, are more common than you might think. They can cause immense discomfort and pain, leaving you desperately searching for relief. Kidney stone treatment depends on size, location, and type. But fear not; once you have a basic understanding of the kidney stone size chart, you can decide on effective treatment strategies with the help of your doctor. 

Being aware of all of your options may aid you in diagnosing and treating kidney stone conditions. Continue reading to learn about the kidney stone size chart in mm, its causes, symptoms, the best ways to eliminate kidney stones, and more.

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About Kidney Stone

Renal calculi, or kidney stones, are solid salt and mineral deposits that develop in the kidneys. They can be as small as a grain of sand or as large as enormous stones, which can be extremely painful and uncomfortable. Anyone can get kidney stones, but several factors can make it more likely to develop kidney stones.

Underlying these factors can help you to prevent the risk of developing stones or help the healthcare provider to identify the right treatment method to cure the condition. Here are some of the causes of kidney stones.

  1. Dehydration: Inadequate fluid intake can result in concentrated urine, which promotes the crystallization of minerals and the formation of stones. 
  2. Genetics: When there is a family record of kidney problems, one is at a higher risk of developing the stones. Genetic factors can influence how the body processes and eliminate certain substances, making one more prone to stone formation.
  3. Dietary Habits: Eating habit is a significant factor that can lead to kidney stone formation. Consuming foods high in oxalate, such as spinach, rhubarb, and chocolate, or being on a diet that's excessively rich in salt or animal protein, can increase the risk of stone formation. 
  4. Medical Conditions: Certain medical conditions can alter the balance of substances found in his urine and raise the possibility of developing stones. Examples include hyperparathyroidism, urinary tract infections, renal tubular acidosis, and inflammatory bowel disease.

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Composition of Kidney Stones

Kidney stones can vary in composition, so once you understand the different types, it can help guide further treatment and prevention strategies. The following are those that are most frequently encountered:

  1. Calcium Stones: These stones are the most prevalent, accounting for approximately 80% of all kidney stones. 
    1. They primarily comprise calcium oxalate or tricalcium phosphate, i.e., Ca3(PO4)2. 
    2. During urine tests, if there is an increase in the oxalate and calcium levels, it can contribute to their formation. 
    3. Patients with hyperparathyroidism also have a greater chance of developing calcium stones. 
    4. One can analyse the size with the help of kidney stone size in mm.
  2. Uric Acid Stones: Uric acid stones form when uric acid levels in the urine are high. 
    1. These stones are frequently observed among individuals suffering from gout, an illness characterised by high uric acid levels in the blood. 
    2. The kidney stone size chart can be used to understand the problem and the right treatment.
  3. Struvite Stones: These stones are usually caused by urinary tract infections (UTIs) and are composed of magnesium ammonium phosphate. 
    1. Struvite stones can increase and be significant if not detected and treated promptly. 
    2. They often require intervention to remove them.
  4. Cystine Stones: This type of kidney stone is highly uncommon and is triggered due to a genetic disorder known as cystinuria. 
    1. People with cystinuria have an impaired ability to reabsorb the amino acid cysteine, leading to the formation of cystine stones. 
    2. These stones can be challenging to manage and may require specialized treatment.
      Type Appearance Presentation age Ration Men: Women Recurrence

      Calcium Oxalate

      Envelope or dumbbell-shaped

      Any age, mean late 40s



      Uric Acid Rhomboid shaped 10 to 15% of all stones



      Calcium Phosphate Amorphous or wedge-shaped rosettes 15% of all stones



      Cystine Hexagon shaped

      1 to 2% of all stones

      2:1 89%
      Struvite Coffin lid shaped

      5 to 15% of all stones



About Kidney Stone Size

Kidney stone size is a crucial component in deciding the best course of treatment and estimating any potential side effects. A kidney stone's size is typically measured in millimetres (mm). The unit, millimetres, is used as it is a detailed measurement that provides valuable insights into the stone's dimensions. On the other hand, centimetres (cm) are larger units of measurement that can be used to describe more giant stones.

Imaging methods like ultrasound, CT scanning, or X-rays are frequently used to measure the size of kidney stones. These imaging techniques enable medical professionals to see the stone and precisely calculate its dimensions. A kidney stone's maximal diameter or its largest cross-sectional dimension are both considered to be its size.

Understanding the kidney stone size in mm allows your doctors to anticipate the stone's behaviour and make informed decisions about management strategies.

Significance of Understanding Kidney Stone Size

The size of a kidney stone can influence the course of treatment and help your healthcare professionals to make informed decisions. Reasons that make kidney stone size chart in mm important are:

  1. Treatment Planning: The size of a kidney stone plays a crucial role in determining the appropriate treatment plan. Smaller stones may be managed conservatively with lifestyle changes and home remedies. On the other hand, larger stones may require medical intervention.
  2. Treatment Success: The success of various treatment methods for kidney stones often depends on their size. Smaller stones generally have a higher likelihood of passing spontaneously than larger stones. One must refer to the kidney stone size chart in mm and treatment.
  3. Monitoring Progress: Knowledge of the stone size is essential for monitoring the progress of treatment. Imaging tests help determine if they are growing, remaining stable, or shrinking over time. This information is crucial for assessing the effectiveness of treatment and making any necessary adjustments.
  4. Prevention Strategies: For individuals who have experienced kidney stones in the past, knowing the size can help healthcare professionals recommend dietary and lifestyle modifications to reduce the risk of future stone formation. 
  5. Complication Risks: The size of a kidney stone can influence the likelihood of complications such as obstruction, infection, or kidney damage. This is where the kidney stone size chart in cm comes to the rescue. Larger stones are more likely to cause significant blockages, leading to more severe symptoms and complications.

Kidney Stone Size Chart: Classification and Interpretation

Kidney stones can vary in size, and understanding the classification and interpretation of kidney stone sizes is essential for both patients and healthcare professionals. A kidney stone size chart provides a standardized way to categorize stones based on their dimensions and helps guide treatment decisions.

 Here is a breakdown of the common classifications and interpretations of kidney stone sizes:

  1. Small stones (<4 mm): These stones are relatively small in size, comparable to a grain of rice or even smaller. 
    1. They can range from a mere speck to around 4mm. 
    2. These stones are often asymptomatic or may cause minimal discomfort during passage.
    3. These smaller stones often have a higher chance of passing naturally through the urinary tract without intervention.
  2. Medium-Sized Stones (4 to 6 mm): This category encompasses stones that are slightly larger in size. 
    1. A kidney stone ranging from the size of a raisin to that of a marble. 
    2. These medium-sized stones may present a more significant challenge when passing naturally. 
    3. These stones may cause more noticeable symptoms, such as severe pain, urinary urgency, or blood in the urine.
    4. Medical intervention may be necessary depending on various factors such as the stone's location, patient history, and symptoms.
  3. Large Stones (>6 mm): Large kidney stones are huge deposits in the kidney and can be quite big. 
    1. These stones are generally larger than marble and can pose significant challenges regarding passage and management. 
    2. These stones can cause significant symptoms, including intense pain, urinary obstruction, or kidney damage. 
    3. Because they are large, passing naturally is challenging and often requires medical intervention or surgical procedures.

We must know the expected size classifications used in the kidney stone size chart to be better informed about the diagnosis and appropriate treatment approaches.

Treatment Approaches Based on Kidney Stone Size

Now, we know that the size of a kidney stone plays a crucial role in determining the most appropriate treatment approach. Here's a breakdown of the corresponding treatment options based on stone size:

  1. Small Stones (<4mm): Doctors often recommend conservative measures and non-invasive interventions for smaller stones. The focus is on facilitating natural passage and managing associated symptoms. Standard treatment approaches include:
    1. Hydration: Adequate fluid intake, especially water, helps increase urine flow, potentially aiding in the stone passage.
    2. Pain Relief Medications: Over-the-counter medications that relieve pain, which include non-steroidal anti-inflammatory medicines (NSAIDs), can help alleviate discomfort during the stone passage.
    3. Watchful Waiting: Small stones will often pass spontaneously with time. If you will monitor closely and make follow-up appointments with your healthcare professional, which is essential to ensure the stone's progress and symptoms, you will be fine soon.
  2. Medium-Sized Stones (4 to 6mm): With medium-sized stones, the likelihood of natural passage decreases, and intervention becomes more necessary. Treatment approaches for medium-sized stones include
    1. Extracorporeal Shock Wave Lithotripsy (ESWL): This non-invasive procedure in which shock waves are used to break the mineral into smaller fragments to pass through urine. It is typically suitable for stones measuring up to 6mm.
    2. Ureteroscopy: This procedure involves passing a thin tube with a camera into the urinary tract to locate and either remove or fragment the stone. Ureteroscopy is often recommended for stones that may be causing significant pain or are unlikely to pass naturally.
  3. Large Stones (>6mm): Larger kidney stones pose a greater challenge and are unlikely to pass naturally without intervention. Treatment options for large stones include:
    1. Percutaneous Nephrolithotomy (PCNL): This surgical procedure involves making a tiny cut in the lower abdomen that is made to get into the kidneys and remove or fragment the stone. PCNL is typically recommended for stones more prominent than 10mm or stones that are causing significant symptoms or complications.
    2. Ureteroscopy with Laser Lithotripsy: Similar to the procedure for medium-sized stones, ureteroscopy may be performed for larger stones. The stone is broken down into smaller components using laser lithotripsy (a laser beam is used to break the kidney stones into tiny pieces, making passage easier).

When to Consult a Doctor?

It's critical to schedule routine follow-up visits with your doctor to evaluate the size of kidney stones and your general renal health. Urine testing and imaging examinations performed on a regular basis can assist detect any changes and inform appropriate preventive measures.

In case a person experiences pain while urinating, passing of blood in the urine, nausea, vomiting, chills, fever, extreme pain, etc., consulting a healthcare provider at the earliest becomes a must.


Now, since you've learned everything you need to know about kidney stones and kidney stone size chart in mm, look for urologists in your area who are known for providing professional, detailed care for kidney stone removal. By understanding the factors that influence kidney stone growth, you can take proactive steps to reduce kidney stone formation.

Are you still looking for a one-stop destination for all your medical needs and requirements? Look no further, as we at HexaHealth are a stop destination for you. HexaHealth has India’s top experts who can diagnose the condition and provide the appropriate treatment to you at the right times. So why hesitate? Contact our experts TODAY!

Suggested Reads,

What are the First Signs of Kidney Stones

Foods that cause Kidney Stones
How to Pass Kidney Stones Fast Indian Diet for kidney stone patients

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Frequently Asked Questions

A visual representation demonstrates the size of the kidney stones, generally in mm and cm; this chart is used to analyze the kidney size stone chart and the required treatment. Depending on the type of kidney stone, both the size and the treatment are sure to vary.


There are several ways with the help of which the kidney stone size can be measured in mm. These are imaging tests such as CT scans, X-Rays, and ultrasounds. The primary purpose of these tests is to analyze the detailed pictures of the kidney stone accurately and for the doctors to understand a clear understanding.


The kidney stone chart in mm is an essential tool that helps in the accurate analysis of the kidney stone and its size, which further helps in the assessment of the required treatment. If the chart shows a kidney size that is less than 2 mm, then it can, without any pain, with lifestyle changes. Similarly, stones that are bigger in size may need medical intervention.


A kidney stone size chart in cm is a visual representation of the kidney stone and its size in cm. A centimetre is one-hundredth of a meter, and in most cases, the kidney size is sure to vary from 1 to 3 cm.


There is a deep connection between kidney stone size charts and the treatment that is required. It is only after the size of the kidneys has been analyzed with the help of the chart that the doctor can diagnose the accurate line of treatment.


 The size of the kidney stone can vary from being as small as a grain of sand to as big as a golf ball. Stones that are less than 3 mm can easily pass through the urinary tract. However, rocks that are bigger in size can not just be painful but also make it difficult for them to pass through the urine.


The size of the kidney stone is sure to affect the treatment approach. Small kidney stones that are less than 5 mm can easily pass through the urinary tract. Stones that are bigger in size, such as 1.5 cm, might require surgery.

In some cases, depending on the size of the kidney stone, the doctor might prescribe medication to break the stone formation into smaller pieces. With knowing the kidney stone size in mm, diagnosis of the problem and treatment can become difficult.


One can have a kidney stone for years and still not know of its existence. But yes, kidney stones are sure to grow in size over a period of time. As long as there is no discomfort, it is ok, but problems can arise when the stone grows and becomes a reason for pain and other issues.


If the doctor suspects that you have a kidney stone, then they are sure to prescribe specific tests to determine the kidney stone size in mm and compare it with the kidney stone size chart in mm and treatment. However, the frequency of monitoring the size of the kidney stone ultimately depends on the stone size.

If the stone size is less than 5 mm, it needs to be monitored to check that it does not expand in size. Stones that are bigger than this need monitoring to prevent breakages in their formation and level of reduction.


Yes, a kidney stone can be present without any symptoms. In fact, in many cases, the size of the stone is so small that it passes through the urine even without the person being aware of it. It is only after the size increases that it brings signs and symptoms with it.


The primary purpose of the kidney size chart in mm is to understand not just what the kidney stone signifies but also to understand the right line of treatment for the same. If one is unaware of the kidney size in mm, one will fail to understand the most suitable treatment that should be adopted.


The size of the calculi is sure to vary from one person to another. While in some people, the size of the calculi can be as fine as the grain of sand, among some people, it can be up to 4-5mm. As long as it is less than 3mm, it is not a cause for concern. However, if it is 4-5mm, then it is not normal, and one needs to seek medical assistance urgently.



All the articles on HexaHealth are supported by verified medically-recognized sources such as; peer-reviewed academic research papers, research institutions, and medical journals. Our medical reviewers also check references of the articles to prioritize accuracy and relevance. Refer to our detailed editorial policy for more information.

  1. Cleveland Clinic. Kidney Stones: Symptoms, Causes, Diagnosis, Treatment & Prevention [Internet]. Cleveland Clinic.
  2. Types of Kidney Stones: Chart, Comparison, and Treatment [Internet]. Healthline.
  3. Kidney stones - Symptoms and causes [Internet]. Mayo Clinic.

Updated on : 15 June 2024

Disclaimer: The information provided here is for educational and learning purposes only. It doesn't cover every medical condition and might not be relevant to your personal situation. This information isn't medical advice, isn't meant for diagnosing any condition, and shouldn't replace talking to a certified medical or healthcare professional.


Dr. Aman Priya Khanna

Dr. Aman Priya Khanna

MBBS, DNB General Surgery, Fellowship in Minimal Access Surgery, FIAGES

12 Years Experience

Dr Aman Priya Khanna is a well-known General Surgeon, Proctologist and Bariatric Surgeon currently associated with HealthFort Clinic, Health First Multispecialty Clinic in Delhi. He has 12 years of experience in General Surgery and worke...View More


Charu Shrivastava

Charu Shrivastava

BSc. Biotechnology I MDU and MSc in Medical Biochemistry (HIMSR, Jamia Hamdard)

2 Years Experience

Skilled in SEO and passionate about creating informative and engaging medical content. Her proofreading and content writing for medical websites is impressive. She creates informative and engaging content that educ...View More

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