Kidney stones form when certain substances in urine become concentrated enough to form crystals. Calcium, oxalate, uric acid and other substances can contribute to stone formation depending on the type of stone.

Although kidney stones have historically been diagnosed more often in men, the difference between men and women has narrowed in some populations. Factors such as obesity, diabetes, diet and other metabolic conditions are associated with stone risk in women.

There is therefore no single cause of kidney stones in females. A woman's stone risk may result from a combination of fluid intake, dietary habits, genetics, urinary chemistry, medical conditions, medications and previous stone history.

At Prabhakar Bhurke Clinic, Dr. Sandip Prabhakar Bhurke, super specialist nephrologist and transplant physician, provides individualized evaluation for kidney stones, recurrent stones and associated kidney conditions.

1. Not Drinking Enough Fluids

Low fluid intake is one of the important contributors to kidney stone formation.

When a person drinks too little, urine becomes more concentrated. Higher concentrations of stone-forming substances can make crystal formation more likely.

Fluid requirements vary between individuals, but maintaining appropriate hydration is an important part of stone prevention.

Women who:

• Work long hours without drinking regularly

• Spend time in hot environments

• Exercise heavily

• Lose fluids through sweating

• Have repeated vomiting or diarrhea

may need particular attention to hydration.

However, people with kidney failure, certain heart conditions or prescribed fluid restrictions should follow their clinician's fluid plan rather than simply increasing water intake.

2. High Salt Intake

A diet high in sodium can increase the risk of kidney stone formation.

Salt is found not only in table salt but also in many:

• Packaged foods

• Instant meals

• Pickles

• Processed snacks

• Restaurant foods

• Sauces and condiments

Dietary sodium reduction can be part of kidney stone prevention, particularly for people who form calcium stones.

3. Certain Dietary Patterns

Diet influences urinary chemistry.

Depending on the stone type and an individual's metabolic risk, high intake of certain foods may increase stone risk.

For example, diets containing substantial amounts of animal protein can influence urinary chemistry and may increase the risk of some stones.

This does not mean women with kidney stones should eliminate protein completely.

The appropriate diet depends on the stone composition and the individual's health.

4. Too Much Oxalate in the Urine

Calcium oxalate is the most common type of kidney stone.

Oxalate occurs naturally in many foods. Some people absorb or excrete more oxalate than others.

Foods that can contain substantial oxalate include:

• Spinach

• Nuts and certain nut products

• Peanuts

• Wheat bran

• Some other plant foods

People with calcium oxalate stones should not automatically eliminate every food containing oxalate. Dietary changes should be based on stone type and individual risk.

5. Not Getting Appropriate Dietary Calcium

An important misconception is that eating calcium-rich foods automatically causes calcium kidney stones.

This is not generally correct.

For people with calcium oxalate stones, getting an appropriate amount of calcium from food can actually help reduce oxalate absorption in the digestive tract.

Therefore, women with kidney stones should not unnecessarily eliminate dairy or other calcium-containing foods without professional advice.

Calcium supplements are a separate issue and should be discussed with a healthcare professional, particularly when stone risk is present.

6. Recurrent Urinary Tract Infections

Women are more susceptible to urinary tract infections than men, and recurrent infections can be relevant to certain types of kidney stones.

Struvite stones, for example, can develop in association with certain urinary infections and may grow rapidly.

Repeated UTIs accompanied by stones should therefore be medically evaluated.

If a woman has fever, chills, flank pain or urinary symptoms with a known stone, prompt medical assessment is important because an infected obstructed urinary tract can become serious.

7. Obesity and Metabolic Health

Being overweight or having obesity is associated with increased kidney stone risk.

Metabolic conditions can alter urine chemistry and contribute to stone formation. The AUA notes associations between stone disease and obesity, hypertension and diabetes, with obesity's impact on stone risk reported as particularly important in women.

A sustainable approach to weight management is preferable to extreme dieting.

Very rapid weight loss is not an appropriate stone-prevention strategy.

8. Diabetes and Kidney Stone Risk

Diabetes and insulin resistance can be associated with kidney stone disease.

Changes in urine chemistry, including urine acidity, may contribute to certain types of stones.

Women with diabetes who develop recurrent stones may therefore benefit from assessment of:

• Blood glucose

• HbA1c

• Kidney function

• Urine chemistry

• Stone composition

Managing diabetes appropriately is important for both kidney and overall health.

9. Family History and Genetic Factors

Some people have a greater tendency to form kidney stones because of inherited factors.

A family history of kidney stones increases the likelihood of developing stones. Certain inherited conditions, such as cystinuria, can also directly cause recurrent stone formation.

Women with repeated stones at a young age or several affected family members may need a more detailed metabolic evaluation.

10. Medical Conditions That Change Urine Chemistry

Certain health conditions can increase the likelihood of kidney stones.

Examples include:

• Hypercalciuria

• Hyperoxaluria

• Hyperuricosuria

• Hyperparathyroidism

• Gout

• Renal tubular acidosis

• Cystic kidney diseases

• Certain intestinal diseases

• Conditions causing repeated urinary obstruction

These conditions can alter the concentration or acidity of substances in urine and promote crystal formation.

Identifying such a condition can be particularly important when stones repeatedly return.

11. Previous Kidney Stones

A woman who has already had a kidney stone has a higher chance of developing another one.

Simply removing or passing a stone does not necessarily eliminate the underlying metabolic or dietary factors that produced it.

For recurrent stone formers, identifying the stone type and evaluating urine chemistry can help guide prevention.

12. Certain Medicines and Supplements

Some medicines can increase kidney stone risk in susceptible individuals.

NIDDK lists several examples, including long-term use of certain diuretics, calcium-based antacids, indinavir and topiramate.

This does not mean that women should stop prescribed medication if they develop a stone.

Instead, the medication list should be reviewed with the treating doctor to determine whether an alternative or preventive strategy is appropriate.

13. Pregnancy and Kidney Stones

Pregnancy does not mean that every woman will develop kidney stones.

However, pregnancy can change urinary tract function and create clinical considerations when a pregnant woman develops stone symptoms.

A pregnant woman with suspected kidney stones should be evaluated by an appropriate healthcare team because diagnostic imaging and treatment choices need to take pregnancy into account.

Do not self-treat stone pain during pregnancy with unapproved medicines.

14. Digestive Conditions and Previous Intestinal Surgery

Certain intestinal disorders and gastrointestinal surgeries can alter the way the body absorbs fluids and minerals.

These changes can increase the risk of some kidney stones, including calcium oxalate stones, in susceptible individuals.

Women with inflammatory bowel disease, malabsorption or a history of intestinal surgery who develop recurrent stones may benefit from a metabolic stone evaluation.

Can Hormones Cause Kidney Stones in Women?

Hormonal factors are not usually considered a single direct explanation for kidney stones in women.

Stone formation is more strongly related to urinary chemistry, fluid intake, diet, metabolic conditions, genetics and other risk factors.

Women should therefore avoid assuming that a kidney stone is caused by hormonal changes alone.

If stones repeatedly occur around pregnancy, menopause or another major health change, the overall medical context should be reviewed.

Why Are Kidney Stones Increasingly Important in Women?

Kidney stone disease has become increasingly recognized in women as well as men.

The AUA has reported a narrowing of the historical gender gap and identified associations between stone disease and conditions such as obesity, hypertension and diabetes.

This makes preventive evaluation important for women with recurrent stones or multiple risk factors.

What Are the Symptoms of Kidney Stones in Females?

Some stones cause no symptoms, especially when they remain within the kidney without obstructing urine flow.

When a stone moves into the ureter, symptoms may include:

• Sudden pain in the side or back

• Pain spreading toward the lower abdomen or groin

• Blood in urine

• Pain or burning during urination

• Frequent urge to urinate

• Nausea

• Vomiting

• Cloudy or foul-smelling urine

Fever or chills may indicate infection and should not be ignored.

Not every episode of pelvic or lower abdominal pain in a woman is caused by a kidney stone. Gynecological, gastrointestinal, urinary and musculoskeletal conditions can produce similar symptoms.

How Are Kidney Stones in Women Diagnosed?

Diagnosis typically combines symptoms, medical history, urine testing, blood tests and imaging.

Urine Examination

Urinalysis can help identify:

• Blood

• Infection

• Crystals

• Urine pH

• Other abnormalities

Blood Tests

Depending on the clinical situation, testing may include:

• Creatinine

• Kidney function

• Calcium

• Uric acid

• Electrolytes

• Other relevant tests

Imaging

Ultrasound, X-ray or CT imaging may be used depending on the clinical situation.

Pregnancy is an important consideration when choosing imaging, so pregnant patients should be evaluated using an appropriate pregnancy-safe diagnostic approach.

Stone Analysis

If a stone is recovered, laboratory analysis can identify its composition.

This information can help guide future prevention.

What Tests Can Find the Reason for Recurrent Kidney Stones?

Women with recurrent stones may require more than a one-time scan.

A detailed stone evaluation can include:

• Medical and family history

• Dietary history

• Medication and supplement review

• Blood chemistry

• Urinalysis

• Stone analysis

• Metabolic testing

• In selected patients, 24-hour urine testing

The AUA recommends a screening evaluation for newly diagnosed stone patients that includes medical and dietary history, serum chemistries and urinalysis.

The exact workup depends on the individual's history and risk factors.

How Can Women Prevent Kidney Stones?

Prevention should be based on the stone type and the reason it formed.

General measures may include:

Drink an Appropriate Amount of Fluid

Adequate fluid intake helps dilute urine and can reduce the concentration of stone-forming substances.

The correct amount varies between individuals.

Reduce Excess Sodium

Lowering excessive salt intake can help reduce stone risk, particularly for calcium stone formers.

Maintain Appropriate Dietary Calcium

Do not unnecessarily eliminate calcium-containing foods because of fear of calcium stones. Appropriate dietary calcium can be beneficial for many calcium oxalate stone formers.

Moderate Animal Protein When Appropriate

Depending on stone type and urinary findings, reducing excessive animal protein may be recommended.

Maintain a Healthy Weight

Sustainable weight management can support metabolic health and may reduce stone risk.

Treat Recurrent UTIs

Women with repeated urinary infections should receive appropriate medical evaluation, particularly if stones are also present.

Follow Stone-Specific Advice

A calcium oxalate stone, uric acid stone, struvite stone and cystine stone can require different preventive approaches.

When Should a Woman With Kidney Stones See a Doctor?

Medical evaluation is particularly important when there is:

• Severe or persistent pain

• Blood in urine

• Recurrent stones

• Repeated urinary infections

• Reduced urine output

• Known kidney disease

• A single functioning kidney

• Pregnancy

• Fever or chills

• Vomiting or inability to maintain fluid intake

A stone associated with infection and urinary obstruction requires prompt assessment.

Kidney Stone Evaluation at Prabhakar Bhurke Clinic

At Prabhakar Bhurke Clinic, Dr. Sandip Prabhakar Bhurke, super specialist nephrologist and transplant physician, provides individualized kidney evaluation for women with kidney stones and recurrent stone-related concerns.

Depending on the clinical situation, evaluation may include:

• Review of previous stone episodes

• Assessment of kidney function

• Urine examination

• Evaluation of recurrent UTIs

• Review of dietary and fluid habits

• Medication and supplement review

• Assessment of metabolic risk factors

• Review of ultrasound or CT reports

• Stone prevention planning

• Evaluation of associated kidney disease

When a stone requires a surgical or endoscopic procedure, coordination with an appropriate urological specialist may be recommended.

Frequently Asked Questions

What are the main causes of kidney stones in females?

Common contributors include low fluid intake, high sodium intake, certain dietary patterns, obesity, diabetes, family history, recurrent UTIs, abnormal urinary calcium or oxalate, hyperparathyroidism, certain intestinal conditions and some medicines.

Are kidney stones common in women?

Kidney stones occur in both women and men. Historically they have been more common in men, but the gender difference has narrowed in some populations.

Can dehydration cause kidney stones in females?

Low fluid intake can make urine more concentrated and increase the likelihood of crystal formation in susceptible people.

Can UTI cause kidney stones in women?

Certain urinary infections can contribute to the formation of struvite stones. Recurrent UTIs should therefore be evaluated, especially when stones are also present.

Does eating calcium cause kidney stones?

Dietary calcium does not automatically cause calcium stones. Appropriate calcium intake from food can help reduce oxalate absorption in the digestive tract in people prone to calcium oxalate stones.

Can diabetes increase kidney stone risk?

Diabetes and metabolic abnormalities are associated with kidney stone disease. Women with diabetes and recurrent stones may benefit from assessment of metabolic and urinary risk factors.

How can I prevent kidney stones from coming back?

Prevention depends on stone composition and individual risk factors. Appropriate fluid intake, reducing excessive sodium, maintaining suitable dietary calcium, reviewing animal-protein intake and completing a metabolic evaluation when indicated can help guide prevention.

Can kidney stones affect kidney function?

A stone that blocks urine flow can cause complications, including infection and loss of kidney function if not appropriately treated.

Conclusion

The causes of kidney stones in females can involve several factors rather than one specific trigger. Low fluid intake, concentrated urine, dietary habits, excess sodium, metabolic conditions, obesity, diabetes, recurrent urinary infections, family history and certain medicines can all contribute in susceptible women.

Understanding why the stone formed is important because prevention should be tailored to the stone's composition and the individual's urinary and metabolic risk factors.

Women with recurrent stones, repeated UTIs, pregnancy, abnormal kidney-function tests or severe stone symptoms should receive appropriate medical evaluation rather than relying only on home remedies.

For individualized kidney stone evaluation and prevention planning, consult Dr. Sandip Prabhakar Bhurke at Prabhakar Bhurke Clinic.

Medical Disclaimer

This article is intended for general educational and informational purposes only and should not be considered a substitute for medical diagnosis, treatment or personalized medical advice. Kidney stones can have multiple causes, and risk factors vary between individuals. Pregnancy, kidney disease, recurrent urinary infections and other medical conditions may require specialized evaluation. Do not make major dietary changes, stop prescribed medicines, take supplements or use stone-treatment medicines without professional guidance. Seek urgent medical attention for severe or persistent pain, fever or chills with urinary symptoms, repeated vomiting, very little or no urine, or rapidly worsening symptoms. Consult Dr. Sandip Prabhakar Bhurke or another qualified healthcare professional for individualized diagnosis and treatment.