Can a Bicornuate Uterus (Double Uterus) Affect Fertility?

A bicornuate uterus, also known as “double uterus”, is a rare condition that usually has no symptoms. Women do not even know that they have a bicornuate uterus until they try to conceive. Even though it sounds complex, it is simply a difference in the shape of the uterus. However, for some women, it can raise concerns about fertility, pregnancy, and delivery.

How does this anomaly look? It is characterised by a heart-shaped structure with a deep indentation at the top. A bicornuate uterus is partially divided into two distinct cavities, which can affect pregnancy outcomes.

If you’ve been diagnosed with a uterine anomaly, it is natural to be overwhelmed and worried. Hence, we bring you this blog to understand what a bicornuate uterus is and how it can affect your fertility. Knowing the nitty-gritty can help you navigate this journey with more confidence and clarity.

Let’s explore its causes, symptoms, potential impact on reproductive health, and available treatment options and strategies.

What is a Bicornuate Uterus?

Your uterus is shaped like a heart if you have a bicornuate uterus. An inverted pear is the usual shape of the uterus. The top region of the uterus is similar to the wide, spherical area of the pear. If your uterus is bicornuate, it resembles a heart because the upper part dips toward the middle.

A uterus is usually a single hollow cavity. It is designed to grow larger during pregnancy. A piece of tissue separates the top of your uterus in a bicornuate uterus. Your uterus may not enlarge as a result, which could pose issues during pregnancy.

Types of Bicornuate Uterus

A bicornuate uterus can be classified into two main types based on the degree of separation:

• Bicornuate bicollis uterus– They are also known as a complete bicornuate uterus. In this, the uterus is fully divided into two separate cavities, forming two distinct horns. Two cavities may also be present, and they are fully divided into two.

• Bicornuate unicollis uterus- They are also known as a partial bicornuate uterus. In this, the uterus is partially divided, with the upper portion separated while the lower part remains connected. There is a simple cervix, and the cavities are also partially divided, mainly at the top.

Is a Bicornuate Uterus Rare or Common?

A bicornuate uterus is a rare congenital uterine anomaly characterized by two uterine cavities, giving it a heart-like shape. It occurs in about 1–3% of women. Many women may not realize they have it until fertility evaluations or pregnancy scans. While some can conceive naturally, it may increase the risk of miscarriage, preterm birth, or pregnancy complications.

What Should I Do if I Have a Bicornuate Uterus?

In case you have a bicornuate uterus, do not worry. Even though they can affect fertility, it doesn’t mean that you can’t have a healthy pregnancy.

However, the first step is to confirm the diagnosis with imaging tests. Your doctor will recommend either an ultrasound or an MRI based on your medical history. Once done, you will need to consult with an expert gynaecologist or fertility specialist. They will help you understand what kind of treatment you might need.

In many cases, the women do not need any surgery, and simple medication helps them conceive. However, there are complex cases of recurrent miscarriage and other complications that need a corrective procedure. The prenatal has to be monitored regularly in such cases, and you will need to watch for risks involving preterm labour or breech position. Staying informed, following your doctor’s advice, and scheduling timely check-ups can help you manage the condition and plan for a safe delivery.

Bicornuate Uterus vs. Septate Uterus

Feature	Bicornuate Uterus	Septate Uterus
Category	Congenital uterine abnormality	Congenital uterine abnormality
Cause	Partial fusion of the Müllerian ducts	Failure of resorption of the septum after duct fusion
Internal Structure	Two separate uterine cavities	Single cavity divided by a fibrous or muscular septum
External Shape	Heart-shaped outer contour	Usually normal outer contour
Impact on Pregnancy	May cause reproductive issues in some cases	Higher risk of miscarriage due to the septum
Treatment Approach	Treated only if causing serious reproductive problems	Often corrected with a minor hysteroscopic procedure
Type of Surgery	More extensive surgery (if required)	Minimally invasive hysteroscopic septum removal

Cause of a Bicornuate Uterus

Here are the common causes of a bicornuate uterus:

Infectious/Environmental Causes

Although the precise aetiology of a bicornuate uterus is unknown, it is generally thought to be a foetal developmental abnormality. This disorder is not directly caused by any recognised infectious agents or environmental factors. However, the development of uterine abnormalities may be influenced by maternal health during pregnancy, including exposure to specific drugs or environmental contaminants.

Genetic/Autoimmune Causes

The formation of a bicornuate uterus may be influenced by genetic factors. According to certain research, women who have a family history of uterine abnormalities may be more vulnerable. Furthermore, reproductive system abnormalities may be linked to several autoimmune diseases, while further investigation is required to prove a clear connection.

Lifestyle and Dietary Factors

A bicornuate uterus is not directly caused by dietary or lifestyle choices; however, leading a healthy lifestyle can promote general reproductive health. It is crucial for women to establish healthy behaviours because factors like obesity, smoking, and poor nutrition can have a detrimental impact on fertility and pregnancy outcomes.

Symptoms of Bicornuate Uterus

Many women who have a bicornuate uterus show no symptoms at all. Nonetheless, a few typical indications and symptoms could be:

• Recurrent miscarriages
• Vaginal bleeding that is irregular
• Pain or discomfort in the abdomen
• Unpleasant sexual relations
• Period pain

It’s critical to speak with your healthcare professional for a precise diagnosis because these symptoms can also be linked to other gynaecological disorders.

How Is A Bicornuate Uterus Diagnosed?

Clinical Evaluation

The first part of the diagnosis is clinical evaluation. In this, the complete patient history and physical examination are done. Healthcare professionals will ask about past pregnancy difficulties, reproductive health, and menstrual history.

Diagnostic Tests

The existence of a bicornuate uterus can be verified by a number of diagnostic procedures:

• Ultrasound: The initial imaging test is frequently a pelvic ultrasound. It can provide an initial evaluation of uterine anatomy.
• Hysterosalpingography (HSG): This X-ray technique involves injecting a contrast dye into the uterus to evaluate its shape and detect fallopian tube obstructions.
• Magnetic Resonance Imaging (MRI): An MRI provides a more precise diagnosis of uterine anomalies by producing detailed images of the uterus and surrounding structures.
• Laparoscopy: To directly view the uterus and evaluate its structure, a minimally invasive surgical procedure may occasionally be carried out.

Differential Diagnosis

Healthcare professionals may take into account several uterine abnormalities when diagnosing a bicornuate uterus, including:

• Septate Uterus: A condition in which the uterine cavity is divided by a muscular or fibrous septum.
• A unicornuate uterus has a single horn and arises from a single Müllerian duct.
• A condition known as Didelphys Uterus occurs when there are two distinct uteri and cervices.

How does a Bicornuate Uterus Affect Pregnancy?

Increased Risk of Miscarriage

The presence of a septum or division in the uterus can significantly impact implantation success. It can lead to:

• Impaired blood supply- A divided uterus can disrupt blood flow to the developing foetus. This condition is critical since the uterus provides the nutrients and oxygen needed for the foetus to grow.
• Issues in uterine expansion- The abnormal structure may restrict the uterus’s ability to stretch as the foertus grows. This can lead to potential, complications and increase the likelihood of miscarriage.

Preterm Labour and Delivery

Since bicornuate uterus has a unique shape, it can limit the space available for the foeturs to grow. This can result in:

• Early contraction- Since the space is confined, it can trigger the uterus to contract prematurely which can lead to preterm labour.

• Increases likelihood of premature delivery- There are studies that shows that women with a bicornuate uterus have a higher chance of preterm births as compared to those with a normal uterine shape.

Malpresentation of the Baby

The irregular uterine shape can affect the foetal positioning, which may result in:

• Increased likelihood of breech presentation- The foetus may not have enough space to turn into the head-down position. This leads to a breech birth where the baby is positioned feet-first.

• Transverse lie- There are cases in which the baby may lie sideways in the uterus. This can result into a complicated delivery which often required a caesarean delivery.

What Complications are Associated with a Bicornuate Uterus?

A bicornuate uterus can increase the risk of certain pregnancy and reproductive complications due to its heart-shaped structure and divided uterine cavity. However, this doesn’t mean that healthy pregnancies with proper medical care.

Here are some of the most common biocornuate uterus complications:

• Recurrent miscarriages, especially in early pregnancy
• Preterm birth due to limited space for the growing baby
• Abnormal fetal position
• Pregnancy in a rudimentary horn can be risky
• Difficulty carrying a pregnancy to full term
• Increased likelihood of cesarean delivery
  

Regular monitoring and specialised care during pregnancy can help manage these risks effectively.

Treatment of Bicornuate Uterus

The severity of the patient’s symptoms and reproductive objectives determine the course of treatment. Here are some ways in which a bicornuate uterus can be treated:

Medical Treatments

• Medications are recommended to treat menstruation abnormalities or other symptoms, such as hormonal therapies.
• Regular monitoring can be adequate if a woman is asymptomatic and has no reproductive problems.

Surgical Options

For women who have serious reproductive issues, surgery may be advised. Among the surgical options are:

• Uterine Reconstruction: Although it’s not usually required or successful, surgery can occasionally be used to restructure the uterus.
• Hysteroscopic Surgery: Any septum or abnormal tissue inside the uterus can be removed with this minimally invasive treatment.

Non-Pharmacological Treatments

Reproductive health can be supported by lifestyle changes in addition to medical and surgical interventions:

• Healthy Diet: Lean proteins, fruits, vegetables, whole grains, and a balanced diet can all help to improve general health.
• Frequent Exercise: Maintaining a healthy weight and enhancing reproductive health are two benefits of regular exercise.
• Stress management strategies like yoga, meditation, and counselling can help reduce stress, which may have a beneficial effect on fertility.

Bicornuate Uterus and IVF

As already discussed above, a bicornuate uterus has an affect on pregnancy. But, this doesn’t mean pregnancy is not possible at all. Many women undergo IVF and conceive successfully in their first time. In this condition, where the uterus has two cavities, fertilisation happens outside the body during IVF. The main concern is the implantation and pregnancy progression. With careful monitoring and personalised treatment, IVF can still be a viable options.

Challenges in IVF with a Bicornuate Uterus

Even though IVF is a viable option to conceive, there can be some challenges with a bicornuate uterus. Here they are:

• There can be high risk of implantation issues because of the unusual shape of the uterine.
• There is an increases chance of miscarriage, particularly in early pregnancy.
• Limited space in one uterine horm can affect the fetal growth.
• Abnormal fetal position such as breech presentation can be an issue.
• Need for closer monitoring and specialised prenatal care after embryo transfer.

Success Rate of IVF with a Bicornuate Uterus

The success rate of IVF with a bicornuate uterus can vary depending on factors like age, egg quality, and overall reproductive health. While implantation and pregnancy risks may be slightly higher, many women still achieve successful pregnancies through IVF with proper medical care and regular monitoring.

How a Bicornuate Uterus Affects Twin Pregnancies:

• Higher Risk of Miscarriage: Women with a bicornuate uterus are at a higher risk of miscarriage, especially during twin pregnancies, due to the abnormal shape and reduced space in the uterus. This can affect the implantation and development of both embryos.
• Preterm Labor: A bicornuate uterus may cause preterm labor or early delivery, particularly in multiple pregnancies like twins, due to the limited space for fetal growth.
• Fetal Malpresentation: In a twin pregnancy with a bicornuate uterus, one or both babies may present in abnormal positions (like breech) because of the restricted space in each uterine horn.
• Increased Risk of Complications: Other complications, such as placental abnormalities, low birth weight, and premature rupture of membranes, can also arise in a bicornuate uterus with twins.

When To Consult A Doctor?

You must immediately consult a doctor if:

• You have faced frequent miscarriages

• There is a severe pain in the pelvis

• You experience unpredictable bleeding

• You are not able to concieve

It is best to consult an expert. Any possible dangers can be managed with early diagnosis and appropriate treatment.

Conclusion

One somewhat frequent congenital abnormality that may affect fertility and pregnancy is a bicornuate uterus. A bicornuate uterus can cause problems for some women, especially during pregnancy, while others may not have any symptoms at all. Imaging methods are used to make the diagnosis, and the severity of the disorder and the existence of related problems like Female infertility or recurrent miscarriage determine the available treatment options.

FAQs

Can you carry a baby with a bicornuate uterus?

Yes, it is possible to carry a baby with bicornuate uterus. Many women have had successful pregnancies with bicornuate uterus, however, at times there can be complications involved like miscarriage.

Can IVF be done in a bicornuate uterus?

Yes, IVF can be done in a bicornuate uterus.

Can bicornuate uterus leads to miscarriage?

It is not neccesary that every preganncy with bicornuate uterus leads to misccariage, however, it definitely increases the chances of such complications.

When surgery is required?

For women who have serious reproductive issues, surgery may be advised. Among the surgical options are:

• Uterine Reconstruction: Although it’s not usually required or successful, surgery can occasionally be used to restructure the uterus.
• Hysteroscopic Surgery: Any septum or abnormal tissue inside the uterus can be removed with this minimally invasive treatment.

How do you identify a bicornuate uterus?

A bicornuate uterus is usually identified through imaging tests such as ultrasound, MRI, or hysterosalpingography (HSG), which help doctors see the shape and structure of the uterus.

Can a bicornuate uterus be repaired?

Yes, a bicornuate uterus can sometimes be repaired through a surgical procedure called metroplasty, usually recommended only in cases of recurrent miscarriages or significant pregnancy complications.