Renal failure in pregnancy is a term commonly used when kidney function becomes severely impaired during pregnancy or around the time of delivery.

However, it is important to distinguish between:

• Acute kidney injury (AKI) that develops suddenly during pregnancy or after delivery

• Chronic kidney disease (CKD) that was present before pregnancy

• A pregnancy complication that causes sudden kidney dysfunction in a woman with previously normal kidneys

• Acute worsening of pre-existing kidney disease

Pregnancy-related acute kidney injury can have several causes, including hypertensive pregnancy disorders, bleeding, infection, dehydration and pregnancy-specific conditions such as HELLP syndrome.

Because kidney function and pregnancy health affect each other, significant renal impairment during pregnancy requires coordinated medical assessment.

At Prabhakar Bhurke Clinic, Dr. Sandip Prabhakar Bhurke, super specialist nephrologist and transplant physician, provides specialist evaluation and kidney care for women with kidney problems during pregnancy.

Is Kidney Failure During Pregnancy Common?

Severe kidney failure during pregnancy is uncommon, but pregnancy-related AKI remains an important medical complication because it can affect both maternal and fetal health.

The causes and frequency vary between populations and healthcare settings.

In India and other developing regions, studies have identified sepsis, obstetric hemorrhage and hypertensive disorders of pregnancy among important causes of pregnancy-related AKI.

Early recognition is therefore important, particularly when a pregnant woman develops high blood pressure, severe infection, bleeding, dehydration or abnormal kidney-function tests.

What Causes Renal Failure in Pregnancy?

Kidney failure during pregnancy does not have one single cause.

The possible causes include pregnancy-related disorders as well as conditions that can affect anyone.

Preeclampsia

Preeclampsia is a major pregnancy-related cause of kidney injury.

It involves high blood pressure developing during pregnancy along with other signs of maternal organ involvement.

Severe preeclampsia can affect kidney function and may be associated with proteinuria and other complications.

HELLP Syndrome

HELLP stands for:

• Hemolysis

• Elevated Liver enzymes

• Low Platelet count

HELLP syndrome can occur as a severe pregnancy-related complication and may be associated with acute kidney injury. Pregnancy-related AKI reviews identify HELLP among important pregnancy-specific causes of renal dysfunction.

Severe Infection or Sepsis

A serious infection can reduce blood flow to the kidneys or directly contribute to kidney injury.

Urinary infections, kidney infections and other systemic infections may become particularly dangerous when accompanied by sepsis.

Severe Bleeding

Major blood loss during pregnancy, miscarriage, delivery or the postpartum period can reduce blood flow to the kidneys.

If blood pressure and circulation fall significantly, acute kidney injury can develop.

Severe Vomiting and Dehydration

Severe vomiting, including pregnancy-related hyperemesis, can result in substantial fluid and electrolyte loss.

Significant dehydration can reduce blood flow to the kidneys and contribute to AKI.

Acute Fatty Liver of Pregnancy

Acute fatty liver of pregnancy is an uncommon but serious pregnancy complication that can affect several organs, including the kidneys.

It generally requires urgent specialist management.

Thrombotic Microangiopathy

Conditions such as thrombotic thrombocytopenic purpura and atypical hemolytic uremic syndrome can produce severe kidney injury during pregnancy or after delivery.

These disorders can resemble other pregnancy complications, so specialist evaluation is important.

Pre-existing Kidney Disease

A woman may enter pregnancy with:

• Chronic kidney disease

• Glomerular disease

• Lupus nephritis

• Polycystic kidney disease

• Diabetic kidney disease

• Previous kidney injury

• A transplanted kidney

Pregnancy can place additional demands on women who already have kidney disease, so pre-pregnancy and antenatal nephrology care can be important.

Medicines and Other Medical Conditions

Some medications and medical conditions can contribute to kidney injury.

Medication safety is particularly important during pregnancy because both the mother and fetus need to be considered when selecting treatment.

Can Kidney Failure Happen at Any Stage of Pregnancy?

Yes.

The causes may differ according to the stage of pregnancy and the circumstances.

Early Pregnancy

During early pregnancy, severe vomiting and dehydration can contribute to kidney injury.

Other non-pregnancy-specific causes of AKI can also occur.

Middle and Later Pregnancy

As pregnancy progresses, hypertensive disorders such as preeclampsia become particularly important considerations.

Other causes such as infection, thrombotic microangiopathy and underlying kidney disease can also occur.

Around Delivery

Severe bleeding, infection, blood-pressure complications and other obstetric emergencies can cause acute kidney injury around delivery.

After Delivery

Kidney injury can also develop or become apparent during the postpartum period.

Preeclampsia-related complications, hemorrhage, infection and thrombotic microangiopathies can occur after delivery, so abnormal kidney function should not be ignored simply because the baby has been delivered.

What Are the Symptoms of Renal Failure in Pregnancy?

Symptoms can vary according to the cause and severity of kidney dysfunction.

Possible symptoms include:

• Reduced urine output

• Swelling of the feet, ankles, hands or face

• Breathlessness

• Persistent nausea or vomiting

• Severe weakness

• Headache

• High blood pressure

• Foamy urine

• Blood in urine

• Sudden weight gain from fluid retention

• Confusion in severe cases

However, symptoms alone cannot establish whether a pregnant woman has kidney failure.

Some important pregnancy-related kidney disorders may initially present through abnormal blood pressure, urine or laboratory findings rather than obvious kidney symptoms.

Why Is Creatinine Important During Pregnancy?

Serum creatinine is one of the important blood tests used to assess kidney function.

Pregnancy normally changes kidney physiology, including increasing kidney filtration. Consequently, a creatinine value that might appear acceptable outside pregnancy can require different interpretation during pregnancy.

A rising creatinine during pregnancy should therefore be evaluated in the appropriate clinical context rather than being dismissed as a normal pregnancy change.

Doctors may compare:

• Current creatinine

• Previous creatinine

• Urine protein

• Blood pressure

• Fluid status

• Electrolytes

• Other pregnancy-related laboratory findings

Pregnancy-related AKI can be difficult to diagnose because normal pregnancy physiology overlaps with some features of kidney disease.

What Tests Are Used to Diagnose Kidney Failure in Pregnancy?

The diagnostic approach depends on the patient's symptoms and suspected cause.

Blood Tests

Testing may include:

• Serum creatinine

• Urea

• Sodium

• Potassium

• Bicarbonate

• Hemoglobin

• Platelet count

• Liver enzymes

• Albumin

• Other tests according to the suspected condition

Urine Testing

Doctors may assess:

• Urine protein

• Albumin

• Blood

• Infection

• Urine sediment

• Other abnormalities

Significant proteinuria may be relevant when evaluating preeclampsia or glomerular kidney disease.

Blood Pressure Monitoring

Blood pressure is particularly important during pregnancy because hypertension and kidney dysfunction can be closely connected.

Markedly elevated blood pressure with symptoms such as severe headache, visual changes, upper abdominal pain or other concerning findings requires urgent obstetric assessment.

Ultrasound

Kidney and urinary tract ultrasound may help evaluate:

• Kidney structure

• Urinary obstruction

• Hydronephrosis

• Other abnormalities

Additional Specialist Testing

Depending on the suspected cause, doctors may order tests for autoimmune disease, hemolysis, thrombotic microangiopathy, infection or other conditions.

In unusual cases where the diagnosis remains uncertain, kidney biopsy may be considered after carefully weighing maternal and fetal risks and benefits.

How Is Renal Failure in Pregnancy Treated?

Treatment depends on why the kidney function has deteriorated.

There is no universal medicine for renal failure during pregnancy.

The treatment team may need to manage both the kidney problem and the pregnancy-related condition causing it.

Correcting Dehydration

If inadequate fluid intake or severe vomiting has reduced kidney blood flow, carefully supervised fluid replacement may be required.

Fluid treatment must be individualized because excessive fluid can be harmful when kidney function is severely reduced or fluid overload is present.

Treating Infection

If infection or sepsis is responsible, appropriate antimicrobial treatment and supportive care are required.

The choice of antibiotic must consider pregnancy, the suspected organism, kidney function and other patient-specific factors.

Managing High Blood Pressure and Preeclampsia

Pregnancy-related hypertension requires appropriate obstetric management.

Depending on the severity and gestational age, management may include blood-pressure treatment, seizure prevention when indicated, fetal monitoring and decisions regarding delivery.

Severe pregnancy complications causing kidney injury may require prompt delivery when medically necessary.

Treating Significant Blood Loss

When hemorrhage contributes to kidney injury, emergency management focuses on controlling bleeding and restoring adequate circulation.

Managing Thrombotic Microangiopathy

Conditions such as TTP or atypical HUS require specialist treatment and can require urgent nephrology, hematology and obstetric involvement.

Managing Pre-existing Kidney Disease

Women with CKD require individualized monitoring of:

• Kidney function

• Blood pressure

• Proteinuria

• Medication safety

• Fluid status

• Maternal complications

• Fetal growth and wellbeing

Is Dialysis Possible During Pregnancy?

Yes.

Dialysis can be provided during pregnancy when kidney failure becomes severe enough to require kidney replacement therapy.

The decision is individualized and depends on the mother's clinical condition, kidney function, fluid balance, electrolyte abnormalities, acid-base disturbances and other complications.

Pregnancy-related AKI requiring dialysis does not automatically mean that the woman will remain dialysis-dependent permanently. Some women with severe AKI recover kidney function after the underlying cause is treated.

Dialysis during pregnancy requires close coordination between nephrology and obstetric teams.

Can Kidney Function Recover After Renal Failure in Pregnancy?

In some cases, yes.

Pregnancy-related AKI can be partially or substantially reversible, particularly when the underlying cause is identified and treated promptly.

For example, kidney function may improve after treatment of:

• Dehydration

• Infection

• Severe bleeding

• Certain pregnancy-related complications

• Urinary obstruction

• Other reversible causes

However, recovery is not guaranteed.

Some women can be left with persistent kidney impairment or may require longer-term kidney care after an episode of pregnancy-related AKI. Recent evidence from studies in developing countries has highlighted the risk of subsequent CKD following pregnancy-associated AKI.

Does Renal Failure in Pregnancy Affect the Baby?

Severe maternal kidney dysfunction can affect pregnancy outcomes.

The risk depends on:

• Cause of kidney injury

• Severity of kidney dysfunction

• Gestational age

• Maternal blood pressure

• Associated infection

• Presence of preeclampsia or HELLP

• Degree of maternal illness

• Timing and effectiveness of treatment

Pregnancy-related AKI has been associated with increased maternal and fetal morbidity, which is why early recognition and multidisciplinary management are important.

The outcome cannot be predicted from creatinine alone.

Can a Woman With Kidney Disease Become Pregnant?

Many women with kidney disease can become pregnant, but the level of risk depends on the underlying condition and degree of kidney impairment.

Important factors include:

• eGFR or kidney function

• Proteinuria

• Blood pressure

• Underlying kidney disease

• Previous transplant

• Current medicines

• Overall health

Ideally, women with known kidney disease should have pre-pregnancy counseling with an appropriate nephrologist and obstetric specialist.

Medication review is particularly important because some medicines used for kidney disease or blood pressure control may not be suitable during pregnancy.

Pregnancy After a Previous Episode of Acute Kidney Injury

A previous episode of pregnancy-related AKI does not necessarily mean that future pregnancy is impossible.

However, kidney function should be reassessed before another pregnancy.

Follow-up may include:

• Creatinine and eGFR assessment

• Urine protein testing

• Blood-pressure measurement

• Review of the original cause of AKI

• Assessment for residual CKD

• Medication review

Women who have persistent kidney abnormalities after pregnancy-related AKI may have a higher long-term risk of CKD and should receive appropriate follow-up.

When Is Renal Failure in Pregnancy an Emergency?

A pregnant woman or recently delivered mother should seek urgent medical attention for symptoms such as:

• Very little or no urine

• Severe breathlessness

• Severe or rapidly increasing swelling

• Very high blood pressure

• Severe headache with visual changes

• Severe upper abdominal pain

• Heavy vaginal bleeding

• Persistent vomiting with dehydration

• Fever with severe illness

• Confusion

• Seizures

• Rapid deterioration in general condition

These symptoms can indicate serious obstetric, kidney or systemic complications.

Why Does Pregnancy-Related Kidney Failure Need Two-Specialty Care?

Renal failure during pregnancy can involve both the mother and fetus.

Depending on the cause, care may involve:

• Nephrologist

• Obstetrician

• Maternal-fetal medicine specialist

• Critical-care team

• Hematologist

• Other specialists when required

For example, preeclampsia-related AKI requires attention to both maternal kidney function and pregnancy-related hypertension, while thrombotic microangiopathy may require additional specialist assessment.

A coordinated approach helps ensure that treatment decisions consider both maternal and fetal wellbeing.

Kidney Care During Pregnancy at Prabhakar Bhurke Clinic

At Prabhakar Bhurke Clinic, Dr. Sandip Prabhakar Bhurke, super specialist nephrologist and transplant physician, provides specialist evaluation for women with kidney problems during pregnancy and the postpartum period.

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

• Assessment of abnormal creatinine

• Kidney-function monitoring

• Proteinuria evaluation

• Blood-pressure assessment

• Evaluation of pregnancy-related AKI

• Assessment of pre-existing CKD

• Review of kidney-related medicines

• Evaluation of fluid and electrolyte abnormalities

• Dialysis assessment when clinically required

• Postpartum kidney-function follow-up

• Coordination with obstetric specialists

The treatment approach is individualized according to the cause of kidney dysfunction, pregnancy stage, maternal condition and fetal considerations.

Frequently Asked Questions

Can pregnancy cause kidney failure?

Pregnancy can be associated with acute kidney injury, particularly when complications such as preeclampsia, severe infection, hemorrhage or other pregnancy-related disorders occur.

What are the symptoms of kidney failure during pregnancy?

Possible symptoms include reduced urine, swelling, breathlessness, nausea, severe weakness and high blood pressure. However, laboratory and clinical evaluation is required because symptoms overlap with many pregnancy conditions.

Is high creatinine during pregnancy always kidney failure?

No. A creatinine result must be interpreted according to pregnancy physiology, previous results and the overall clinical picture. A rising creatinine during pregnancy deserves appropriate evaluation.

Can kidney failure during pregnancy be reversed?

Some cases of pregnancy-related acute kidney injury can improve substantially when the underlying cause is treated. Recovery varies depending on the severity and cause of the kidney injury.

Can a pregnant woman receive dialysis?

Yes. Dialysis can be used when clinically necessary for severe kidney failure or its complications during pregnancy. The decision requires specialist nephrology and obstetric management.

Can kidney failure affect the baby?

Severe pregnancy-related AKI is associated with increased risks to both maternal and fetal health. The outcome depends on the underlying cause, severity, gestational age and how quickly treatment is provided.

Can women with chronic kidney disease have a healthy pregnancy?

Some women with CKD have successful pregnancies, but risk varies according to kidney function, proteinuria, blood pressure, underlying disease and medications. Pre-pregnancy counseling and specialist antenatal care are important.

Does kidney failure always require dialysis during pregnancy?

No. Dialysis is not automatically required for every pregnant woman with impaired kidney function. It is considered when kidney failure causes complications that cannot be adequately managed with other treatment.

Conclusion

Renal failure in pregnancy is a serious condition that requires prompt medical assessment, but it does not always mean permanent kidney failure.

Kidney dysfunction during pregnancy may result from preeclampsia, HELLP syndrome, infection, severe dehydration, hemorrhage, thrombotic microangiopathy, pre-existing kidney disease or other conditions.

Diagnosis generally involves kidney-function blood tests, urine testing, blood-pressure assessment and targeted investigations to identify the underlying cause. Treatment is directed at the specific problem and may include fluid management, infection treatment, blood-pressure control, management of pregnancy complications or dialysis when clinically necessary.

Some cases of pregnancy-related acute kidney injury recover significantly after treatment, while other patients may develop persistent kidney impairment and require long-term nephrology follow-up.

If you are pregnant or recently delivered and have abnormal kidney-function tests, reduced urine, severe swelling, high blood pressure, breathlessness or other concerning symptoms, prompt medical evaluation is important.

For specialist kidney evaluation during pregnancy and postpartum kidney care, consult Dr. Sandip Prabhakar Bhurke at Prabhakar Bhurke Clinic.

Medical Disclaimer

This article is intended for general educational and informational purposes only and is not a substitute for medical diagnosis, treatment or individualized medical advice. Renal failure in pregnancy is a potentially serious condition requiring assessment by qualified healthcare professionals. Kidney dysfunction during pregnancy can have multiple causes, including preeclampsia, HELLP syndrome, infection, hemorrhage, dehydration, thrombotic microangiopathy and pre-existing kidney disease. Treatment must be individualized according to the mother's condition, pregnancy stage, kidney function, underlying cause and fetal considerations. Do not start, stop or change medicines, fluids or blood-pressure treatment based solely on this article. Seek urgent medical attention for very little or no urine, severe breathlessness, heavy bleeding, seizures, severe headache with visual changes, very high blood pressure, severe swelling, persistent vomiting, fever with serious illness or rapidly worsening symptoms. Consult Dr. Sandip Prabhakar Bhurke, an appropriate obstetric specialist, or another qualified healthcare professional for personalized care.