A uterine septum is a congenital malformation of the uterus, present from the period of embryonic development, which involves the existence of a wall of tissue that partially or completely divides the uterine cavity. In many cases, this change does not produce obvious symptoms and may be discovered incidentally, during investigations for infertility, pregnancy losses or before an assisted reproduction treatment.
For couples facing difficulties in achieving pregnancy, uterine evaluation is an important stage. A uterine cavity with an altered shape may influence how the embryo implants or the development of an already achieved pregnancy. For this reason, before In Vitro Fertilization or in the context of difficult reproductive outcomes, the doctor may recommend investigations such as transvaginal ultrasound evaluation before IVF, in order to obtain information about the uterus, endometrium and ovaries.
What a Uterine Septum Is and Why It May Go Unnoticed
A uterine septum appears when the uterus does not form completely normally during intrauterine life. Normally, the structures that form the uterus join together, and the internal wall between them is resorbed. When this resorption is not complete, a septum may remain, meaning a portion of tissue that separates the uterine cavity.
The septum may be small, partial or may divide the uterine cavity to a greater extent. This is why its impact is not identical from one patient to another. Some women may have a uterine septum and achieve pregnancy without difficulty, while others may reach medical evaluation after infertility, recurrent pregnancy losses, missed miscarriages or obstetric complications.
It is important to know that a uterine septum cannot be correctly evaluated based on symptoms alone. Most often, symptoms are absent or nonspecific. Diagnosis is based on imaging investigations and, in certain cases, on direct exploration of the uterine cavity.
How a Uterine Septum May Influence Fertility, Implantation and Pregnancy
The connection between a uterine septum and fertility must be viewed carefully. Medical literature shows a clearer association between uterine septum and pregnancy losses or certain obstetric complications, while the direct relationship with infertility may be more nuanced and must be interpreted in the context of each case. ASRM guidelines recommend individualized decisions, especially when a uterine septum is identified in the context of infertility. (ASRM)
One possible mechanism is related to the quality of the area where the embryo implants. If implantation takes place at the level of the septum, the vascularization and tissue structure may not offer the same support as the rest of the uterine cavity. This may be relevant especially in cases with pregnancy losses, biochemical pregnancies or repeated implantation failures, although not every situation of this kind is caused by a uterine septum.
Why Not All Cases Have the Same Impact
A small uterine septum, discovered incidentally, may not require the same approach as an extensive septum associated with a history of pregnancy losses. The size of the septum, the shape of the uterine cavity, reproductive history, the patient’s age, the partner’s results, oocyte or embryo quality and any other causes of infertility all matter.
For this reason, the diagnosis should not be interpreted in isolation. A uterine septum may be one piece of a broader picture, not necessarily the only explanation for delayed pregnancy.
When It Becomes Relevant in Infertility Evaluation
The doctor may consider additional investigations when there are implantation difficulties, recurrent pregnancy losses, inconclusive IVF results or ultrasound suspicions regarding the shape of the uterine cavity. In these situations, the purpose of the evaluation is not only to confirm the diagnosis, but also to establish its clinical relevance.
A uterine septum becomes even more important to analyze when the rest of the basic investigations do not sufficiently explain the difficulty of achieving or maintaining a pregnancy.
What Investigations Can Clarify the Diagnosis of Uterine Septum
The diagnosis of uterine septum must differentiate this anomaly from other congenital uterine shapes, such as bicornuate or arcuate uterus. This distinction is important because the medical approach may be different. It is not enough to observe that the uterus has a particular shape; the doctor must understand what the uterine cavity and the external contour of the uterus look like.
The Role of Ultrasound in Evaluating the Uterine Cavity
Transvaginal ultrasound, especially when performed with experience and completed, when needed, with advanced techniques, can provide important information about the shape of the uterus and the uterine cavity. In infertility evaluation, ultrasound does not look only at the ovaries or endometrial thickness, but also at possible structural changes that may influence implantation.
In practice, the doctor may recommend 2D ultrasound, 3D ultrasound, sono-hysterography or other imaging methods, depending on the clinical suspicion and the information already available. 3D ultrasound is frequently mentioned in specialized literature as a useful method for evaluating uterine anomalies, because it can show the shape of the cavity and the uterine contour more clearly. (PMC)
When Hysteroscopy May Be Recommended
Hysteroscopy allows direct visualization of the uterine cavity using a thin instrument equipped with a camera. In the context of a uterine septum, it may have a diagnostic role and, in certain cases, a therapeutic role. ACOG mentions operative hysteroscopy among the procedures used to treat certain intrauterine pathologies, including uterine septum. (ACOG)
At Genesis Athens, an investigation such as hysteroscopy for evaluation of the uterine cavity may be discussed when there are suspicions related to the shape of the cavity, difficult implantation, pregnancy losses or results that justify a more detailed analysis. Not all patients need this procedure, and the indication must be established by the doctor based on medical history and previous investigations.
Treatment of Uterine Septum: When It Is Considered and What Should Be Discussed With the Doctor
Treatment of a uterine septum is not automatically necessary in all cases. The decision depends on the size of the septum, pregnancy history, the patient’s age, reproductive plans and the existence of other causes of infertility. In many situations, the medical discussion must weigh the possible benefits, the limits of available evidence and the risks of any intervention.
When treatment is indicated, it is usually performed hysteroscopically, through septum resection. The procedure aims to remodel the uterine cavity, so that it offers a more suitable space for implantation and pregnancy development. Clinical medical sources describe hysteroscopic treatment as a common approach for correcting the septum, but they also emphasize that the indication must be individualized. (Cleveland Clinic)
It is recommended to discuss with the doctor what the intervention aims to achieve, what alternatives exist, what investigations are necessary beforehand and how the right time is established for trying to achieve pregnancy after treatment.
“You deserve to be listened to, seen, treated with respect and supported throughout every stage of life.”
Andreas Vythoulkas
Specialist in Obstetrics and Gynecology
Uterine Septum and IVF: Why Uterine Evaluation Matters Before Treatment
In an assisted reproduction pathway, the quality of oocytes, sperm cells and embryos is essential, but the uterus remains the environment where implantation takes place. For this reason, evaluation of the uterine cavity may be a relevant stage before embryo transfer, especially if there is a history of implantation failures, pregnancy losses or imaging suspicions.
A uterine septum does not automatically mean that In Vitro Fertilization cannot succeed. However, when it is significant, the doctor may recommend clarifying the diagnosis and, in certain cases, correcting it before transfer. This approach aims to reduce uterine factors that may affect implantation, without promising a guaranteed result.
In the treatment plan, information about the uterus is correlated with the patient’s age, ovarian reserve, embryo quality, pregnancy history and any associated diagnoses. For patients preparing for assisted reproduction, the Genesis Athens guide on In Vitro Fertilization may help them understand the main stages and how investigations are integrated into a coherent medical pathway.
Frequently Asked Questions
What is a uterine septum?
A uterine septum is a congenital malformation in which a portion of tissue partially or completely divides the uterine cavity. It may be discovered incidentally or during evaluation for infertility, pregnancy losses or preparation for assisted reproduction treatments.
Does a uterine septum always cause infertility?
No. Some patients with a uterine septum can achieve pregnancy without difficulty. In other cases, the septum may be associated with difficult implantation, pregnancy losses or complications. Its relevance must be evaluated in the context of the complete medical history.
How is a uterine septum correctly diagnosed?
Diagnosis may include transvaginal ultrasound, 3D ultrasound, sono-hysterography, MRI in selected cases or hysteroscopy. The doctor will choose the investigations depending on clinical suspicion and the information already obtained.
When is hysteroscopy recommended in the case of a uterine septum?
Hysteroscopy may be recommended when direct visualization of the uterine cavity is necessary or when hysteroscopic treatment is being considered. The indication depends on symptoms, reproductive history and imaging investigation results.
Can a uterine septum be treated?
Yes, in cases where treatment is indicated, the septum can usually be corrected hysteroscopically. However, not every uterine septum requires intervention, and the decision must be made after an individualized medical evaluation.
Is evaluation for uterine septum necessary before IVF?
It is not mandatory for all patients, but it may be important if there are ultrasound suspicions, repeated implantation failures, pregnancy losses or a history suggesting a possible uterine problem. The doctor can recommend the appropriate investigations before embryo transfer.
Why Choose Genesis Athens for the Evaluation of Uterine Septum and Fertility
Genesis Athens approaches fertility evaluation through a structured medical pathway, in which investigations are recommended according to each patient’s history and reproductive objective. In the case of a uterine septum, it is important that the diagnosis is not viewed in isolation, but integrated into the complete analysis of the uterus, endometrium, ovulation, ovarian reserve, male factor and pregnancy history.
The medical team can correlate the results of ultrasound, hysteroscopy and other investigations to establish whether the septum is only an anatomical finding or an element with possible impact on implantation and pregnancy. This difference is essential in order to avoid both unnecessary interventions and the omission of a relevant uterine factor.
For patients preparing for In Vitro Fertilization or those who have experienced pregnancy losses or difficult reproductive outcomes, careful evaluation of the uterine cavity may help build a clearer, safer and better adapted medical plan for your situation.
Talk to a specialist about
uterine septum
Sources:
Uterine Septum: When a Uterine Malformation May Affect Fertility
Specialist in Obstetrics and Gynecology
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