🔑 Key Message

Throughout this series on Müllerian

Not every suspected anomaly is a true anomaly.

An arcuate uterus,

 a septate uterus, 

a bicornuate uterus, 

a unicornuate uterus, 

and uterus didelphys 

may appear similar at first glance, yet they can have very different reproductive implications and management strategies.

This is why accurate diagnosis matters.

Careful assessment, appropriate imaging, clinical correlation, and follow-up are often just as important as the initial scan itself.

As clinicians, our responsibility is not to make the most dramatic diagnosis.

Our responsibility is to make the most accurate one.

Because the correct diagnosis guides the correct counseling, the correct management, and ultimately the best possible outcome for our patients.

Thank you for following this educational journey through Müllerian anomalies.

Dr Rabab Cares 

#DrRababCares 

#MullerianAnomalies 

#WomensHealth 

 #3DUltrasound 

#ReproductiveMedicine 

#FertilityEducation

 🩺 Uterus Didelphys

Uterus didelphys is a rare congenital Müllerian anomaly resulting from complete failure of fusion of the Müllerian ducts during fetal development.

As a result, a woman may have:

• Two separate uterine cavities

• Two cervices

• Sometimes a longitudinal vaginal septum.

Unlike a bicornuate uterus, where there is partial fusion, uterus didelphys results in two distinct uterine structures.

Can women with uterus didelphys become pregnant?

Absolutely.

Many women conceive naturally and may remain unaware of the condition until pregnancy or imaging studies reveal it.

However, uterus didelphys has been associated with an increased risk of:

• Miscarriage

• Preterm birth

• Malpresentation (especially breech presentation)

• Cesarean delivery.

One important consideration is the possible association with:

🩺 OHVIRA Syndrome (Obstructed Hemivagina and Ipsilateral Renal Anomaly)

Patients may present with:

 • Severe dysmenorrhea

• Chronic pelvic pain

• Hematocolpos

• Renal tract anomalies

Accurate diagnosis is essential.

3D ultrasound and MRI can help differentiate uterus didelphys from other Müllerian anomalies and identify associated abnormalities.

The key message:

Having two uteri does not mean a woman cannot have a successful pregnancy.

With appropriate diagnosis and obstetric care, many women achieve excellent reproductive outcomes.

Dr Rabab Cares 

#DrRababCares 

#UterusDidelphys

#MullerianAnomalies

#UterineAnomalies

#OHVIRASyndrome

#3DUltrasound

#HighRiskPregnancy

 🩺 Rudimentary Horn

A rudimentary horn is an underdeveloped uterine structure that may be present in women with a unicornuate uterus.

It can be:

 • Communicating 

• Non-communicating 

• Functional 

• Non-functional

Why is it important?

A non-communicating functional rudimentary horn may lead to:

• Severe dysmenorrhea 

• Chronic pelvic pain

 • Hematometra

 • Endometriosis

However, the most serious complication is:

⚠️ Rudimentary Horn Pregnancy

Although rare, pregnancy can occur within a rudimentary horn through transperitoneal migration of sperm or a fertilized ovum.

Because the horn is unable to expand normally, rupture may occur during the second trimester, resulting in catastrophic intra-abdominal hemorrhage.

Early diagnosis is therefore critical.

Clinical suspicion should increase when ultrasound shows: 

• A gestational sac separate from the main uterine cavity

 • An asymmetric uterine appearance 

• Difficulty identifying continuity with the cervix

3D ultrasound and MRI may help confirm the diagnosis.

Management of rudimentary horn pregnancy is surgical removal due to the high risk of rupture.

The key message:

A rudimentary horn is not simply an anatomical curiosity.

Recognizing it early can be life-saving.

Dr Rabab Cares 

#DrRababCares 

#RudimentaryHorn #RudimentaryHornPregnancy #UnicornuateUterus #MullerianAnomalies #UterineAnomalies

 🩺 Unicornuate Uterus

A unicornuate uterus is a rare congenital Müllerian anomaly that develops when only one Müllerian duct forms normally.

As a result, the uterus is smaller than usual and typically has a single functional uterine horn.

In some women, a rudimentary horn may also be present.

Why does it matter?

Although many women with a unicornuate uterus can conceive naturally, this condition is associated with increased reproductive and obstetric risks, including:

• Early pregnancy loss

• Second-trimester pregnancy loss

• Preterm birth

• Malpresentation

• Fetal growth restriction

• Increased cesarean delivery rates

One important consideration is the presence of a rudimentary horn.

A non-communicating rudimentary horn may be associated with:

• Pelvic pain

• Endometriosis

• Rare but potentially dangerous rudimentary horn pregnancy

Accurate diagnosis is essential.

3D transvaginal ultrasound and MRI can help define uterine anatomy and identify associated anomalies.

Women with a unicornuate uterus may also have associated renal tract anomalies, making further evaluation appropriate in selected cases.

With proper surveillance and individualized obstetric care, many women achieve successful pregnancies and healthy outcomes.

Dr Rabab Cares 🌷

#DrRababCares 

#UnicornuateUterus #MullerianAnomalies #UterineAnomalies  #MaternalHealth #PregnancyCare #HighRiskPregnancy #ReproductiveMedicine #FertilityEducation #3DUltrasound

 🩺 Bicornuate Uterus

A bicornuate uterus is a congenital uterine anomaly resulting from incomplete fusion of the Müllerian ducts during fetal development.

It is characterized by a deep external fundal indentation, creating the appearance of a "heart-shaped" uterus with two uterine horns.

One of the most important clinical challenges is differentiating a bicornuate uterus from a septate uterus, as management differs significantly.

Accurate diagnosis often requires:

 • 3D transvaginal ultrasound

 • MRI in selected cases.

What does it mean for fertility and pregnancy?

The good news is that most women with a bicornuate uterus can conceive naturally.

However, studies have shown an increased risk of: 

• Miscarriage 

• Preterm birth 

• Malpresentation (especially breech presentation)

 • Cervical insufficiency in selected patients 

• Increased cesarean delivery rates.

Importantly, bicornuate uterus is more strongly associated with pregnancy-related complications than with infertility itself.

Management is usually focused on: 

✔️ Accurate diagnosis

 ✔️ Individualized pregnancy surveillance 

✔️ Appropriate obstetric care

A bicornuate uterus should not automatically be viewed as a barrier to motherhood.

With proper monitoring, many women achieve successful pregnancies and healthy outcomes.

Dr Rabab Cares 

#DrRababCares 

#BicornuateUterus 

#MullerianAnomalies

 #UterineAnomalies  

 #PregnancyCare #ReproductiveMedicine #FertilityEducation #3DUltrasound #HighRiskPregnancy

 Eid Al-Adha Mubarak 🌙✨

May this blessed Eid bring peace to your hearts, comfort to your homes, and endless blessings to your families.

May Allah accept our prayers, sacrifices, and sincere intentions.

Wishing you days filled with mercy, happiness, and good health 🤍

Dr Rabab Cares

#DrRababCares

 🌍Africa is not only where I work…

it became part of who I am.

For 7 years in Zambia,

I have witnessed the strength of African women up close.

Their patience.

Their resilience.

Their love for their children despite every challenge.

As doctors, we treat patients.

But sometimes… Africa teaches us too.

It teaches humanity.

Community.

Strength during difficult days.

And how a mother can still smile while carrying so much silently.

On this Africa Day,

I celebrate the women who keep going no matter how hard life becomes.

The mothers.

The daughters.

The healthcare workers.

The women silently holding entire families together. 💚

Happy Africa Day 🌍

With love and respect to the continent that became home.

Dr Rabab Mustafa

OB/GYN | Lusaka

#DrRababCares 

#AfricaDay2026

 #AfricanWomen

 #MaternalHealth

 #Zambia