Recurrent Miscarriage: Causes, Tests and Treatment

Many couples who experience repeated pregnancy loss go on to have a healthy baby with the right diagnosis and treatment.

In this blog, Dr. Aradhya Achuri, Fertility Expert in Hyderabad, explains the recurrent miscarriage causes, symptoms, available tests, and treatment options to help improve the chances of a successful pregnancy.
 

What is Recurrent Miscarriage?

A recurrent miscarriage is generally defined as two or more consecutive pregnancy losses, especially during the first trimester. Some medical guidelines may define it as three or more miscarriages, but many fertility specialists now recommend evaluation after two pregnancy losses.

A miscarriage usually occurs before 20 weeks of pregnancy, with most happening during the first 12 weeks.

Having recurrent miscarriages does not mean that pregnancy is impossible. Many couples can achieve a healthy pregnancy after proper evaluation and treatment.
 

Recurrent Miscarriage Causes

There are several possible recurrent miscarriage causes. In some women, more than one factor may be responsible, while in others, the exact cause may not be identified.

Chromosomal Problems

One of the most common reasons is a chromosomal abnormality in the embryo. Sometimes, one partner may carry a balanced chromosomal rearrangement that increases the risk of miscarriage.

Hormonal Disorders

Hormonal imbalances can affect early pregnancy. These include:

• Thyroid disorders
• Poorly controlled diabetes
• High prolactin levels
• Hormonal imbalance affecting ovulation

Treating these conditions can improve pregnancy outcomes.

Uterine Abnormalities

Some women are born with an unusually shaped uterus, while others may develop uterine fibroids, polyps, or scar tissue. These conditions can affect embryo implantation or pregnancy growth.

Antiphospholipid Syndrome (APS)

APS is an autoimmune disorder that causes abnormal blood clotting. It may reduce blood flow to the developing placenta, increasing the risk of miscarriage.

Fortunately, APS can often be treated successfully during pregnancy.

Polycystic Ovary Syndrome (PCOS)

Women with PCOS may have a slightly higher risk of miscarriage, especially if insulin resistance or obesity is also present.

Cervical Weakness

In some women, the cervix may open too early during pregnancy, leading to second-trimester pregnancy loss.

Lifestyle Factors

Certain lifestyle habits may also increase miscarriage risk, including:

• Smoking
• Excessive alcohol intake
• Obesity
• Poorly controlled medical conditions
• High stress levels
   

Symptoms of Recurrent Miscarriage

The main symptom is repeated pregnancy loss. During pregnancy, warning signs may include:

• Vaginal bleeding
• Lower abdominal pain
• Severe cramping
• Passing tissue or clots
• Back pain

Some women experience no symptoms until pregnancy loss occurs.

If you have had two or more miscarriages, it is important to consult a fertility specialist for further evaluation.
 

How is Recurrent Miscarriage Diagnosed?

Finding the underlying cause is one of the most important steps in planning future pregnancies.

Your fertility specialist may recommend several investigations.
 

Medical History

Your doctor will ask about:

• Previous pregnancies
• Medical conditions
• Family history
• Menstrual history
• Previous surgeries
• Lifestyle habits
   

Ultrasound Scan

A pelvic ultrasound helps evaluate the uterus and ovaries to identify fibroids, uterine abnormalities, or other structural problems.

Genetic Testing

Genetic testing for both partners (couple) may be recommended if a genetic cause is suspected. This test checks whether either partner carries a balanced chromosomal rearrangement that may increase the risk of recurrent miscarriage. In some cases, testing of pregnancy tissue from a previous miscarriage may also help identify chromosomal abnormalities.
 

List of Blood Tests for Recurrent Miscarriage

A list of blood tests for recurrent miscarriage may include:

• Thyroid Function Test (TSH)
• Blood Sugar (HbA1c)
• Antiphospholipid Antibody Test (APS Screening)
• Lupus Anticoagulant
• Anticardiolipin Antibodies
• Beta-2 Glycoprotein Antibodies
• Prolactin Level
• Complete Blood Count (CBC)
• Vitamin D Level (when indicated)
• Hormonal profile based on individual needs
• Genetic testing  

These tests help identify medical conditions that may increase the risk of miscarriage.
 

How is Recurrent Miscarriage Treated?

Many couples ask, "How is recurrent miscarriage treated?"

Treatment depends entirely on the underlying cause.
 

Treatment for Hormonal Disorders

Managing thyroid disease, diabetes, or hormonal imbalance can improve the chances of a healthy pregnancy.

Blood-Thinning Medicines

Women diagnosed with Antiphospholipid Syndrome may benefit from low-dose aspirin and blood-thinning injections during pregnancy.

Lymphocyte Immunization Therapy (LIT)

In selected cases where recurrent miscarriage is suspected to be related to alloimmune factors, your fertility specialist may discuss Lymphocyte Immunization Therapy (LIT). This treatment is considered only for carefully selected patients after detailed evaluation, as its use remains a subject of ongoing medical research and is not recommended for everyone.

Surgery for Uterine Problems

If fibroids, uterine septum, or scar tissue are affecting pregnancy, surgery may be recommended before trying to conceive again.

Cervical Stitch (Cerclage)

Women with cervical weakness may require a cervical stitch during pregnancy to help prevent pregnancy loss.

Fertility Treatment

If recurrent miscarriage is associated with infertility or age-related factors, treatments like IUI or IVF may be recommended.

When recurrent miscarriage is caused by genetic abnormalities, advanced embryo testing during IVF may help improve the chances of a healthy pregnancy.

This may include:

• PGT-A (Preimplantation Genetic Testing for Aneuploidy): Helps identify embryos with the correct number of chromosomes.
• PGT-M (Preimplantation Genetic Testing for Monogenic Disorders): Used when there is a known inherited genetic disorder in the family.
• PGT-SR (Preimplantation Genetic Testing for Structural Rearrangements): Recommended for couples with balanced chromosomal rearrangements.

These tests help doctors select healthy embryos for transfer and may reduce the risk of miscarriage in suitable patients.

 

Can You Have a Healthy Pregnancy After Recurrent Miscarriage?

Yes.

Even after multiple miscarriages, many women go on to have healthy pregnancies.

The chances improve when:

• The underlying cause is identified.
• Appropriate treatment is started.
• Pregnancy is monitored closely.
• Regular follow-up with a fertility specialist is maintained.

Early prenatal care plays a very important role in improving pregnancy outcomes.

 

When Should You See a Fertility Specialist?

You should consult a fertility specialist if:

• You have experienced two or more miscarriages.
• You have difficulty conceiving after miscarriage.
• You have irregular periods.
• You have PCOS, thyroid disease, or diabetes.
• You have a family history of recurrent pregnancy loss.
• You are over 35 years of age and planning pregnancy.

Early evaluation can help identify treatable causes and improve your chances of a successful pregnancy.

 

Conclusion

Experiencing recurrent miscarriage can be emotionally challenging, but it does not mean you cannot become parents. Today, many causes of recurrent pregnancy loss can be diagnosed and treated successfully.

If you have experienced repeated miscarriages, do not lose hope. Seeking early medical advice can help identify the cause and create a personalized treatment plan.

Dr. Aradhya Achuri, Fertility Expert in Hyderabad, offers comprehensive evaluation and advanced fertility care to help couples overcome recurrent pregnancy loss and achieve a healthy pregnancy.

 

Frequently Asked Questions (FAQs)