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Coincidence of uterine malformations and endometriosis: a clinically relevant problem?

March 18, 2025

  • Women’s Health
    Women’s Health

    Women’s health, a vital aspect of medical science, encompasses various conditions unique to women’s physiological makeup. Historically, women were often excluded from clinical research, leading to a gap in understanding the intricacies of women’s health needs. However, recent advancements have highlighted the significant role that the microbiome plays in these conditions, offering new insights and potential therapies. MicrobiomeSignatures.com is at the forefront of exploring the microbiome signature of each of these conditions to unravel the etiology of these diseases and develop targeted microbiome therapies.

Last Updated: 2024-06-23

Microbiome Signatures identifies and validates condition-specific microbiome shifts and interventions to accelerate clinical translation. Our multidisciplinary team supports clinicians, researchers, and innovators in turning microbiome science into actionable medicine.

Karen Pendergrass

Karen Pendergrass is a microbiome researcher specializing in microbiome-targeted interventions (MBTIs). She systematically analyzes scientific literature to identify microbial patterns, develop hypotheses, and validate interventions. As the founder of the Microbiome Signatures Database, she bridges microbiome research with clinical practice. In 2012, based on her own investigative research, she became the first documented case of FMT for Celiac Disease—four years before the first published case study.

What was studied?

The retrospective study explored the prevalence of endometriosis in patients with uterine malformations. It specifically investigated the relationship between different types of uterine malformations (obstructive, non-obstructive, and various classifications under the American Fertility Society (AFS)) and the incidence of endometriosis, which is characterized by the presence of endometrial tissue outside the uterus. The study aimed to determine if obstructive malformations, which could potentially lead to increased retrograde menstruation, have a higher coincidence with endometriosis compared to non-obstructive ones.

 

Who was studied?

The subjects of the study were patients with uterine malformations who were admitted to the hospital between December 1, 2014, and November 30, 2019. A total of 279 cases were analyzed after excluding certain cases where no laparoscopy was performed. The study group comprised a diverse array of uterine malformations, including non-obstructive malformations, obstructive malformations, and cases of uterine agenesia/hypoplasia.

 

What were the most important findings?

The study revealed a high prevalence of endometriosis among patients with uterine malformations, particularly in those with obstructive malformations. Key findings include:

Key FindingsDetails
Overall Prevalence of Endometriosis74.9% of the patients had histologically confirmed endometriosis, which included peritoneal, ovarian, and deep infiltrating endometriosis.
Prevalence in Obstructive Uterine MalformationsA particularly high correlation with endometriosis was observed in obstructive uterine malformations, with an incidence of 87.5% in women who had an obstructive malformation with an active endometrium.
Prevalence in Septate UterusHigh rates of endometriosis were also found in cases of septate uterus, a common uterine malformation, with an overall prevalence of 77.1%.

What are the greatest implications of this study?

The findings suggest significant clinical implications for the management of patients with uterine malformations, particularly regarding the diagnosis and treatment of endometriosis. The implications include:

Diagnostic Approach: There should be a high index of suspicion for endometriosis in patients presenting with uterine malformations, especially those with obstructive types. This could lead to more targeted screening and earlier diagnosis.

Integrated Treatment: For patients with both endometriosis and uterine malformations, comprehensive treatment plans that address both conditions simultaneously might improve clinical outcomes.

Fertility Management: Since both endometriosis and uterine malformations can impact fertility, understanding the link between these conditions is crucial for offering appropriate fertility advice and interventions.

Surgical Considerations: The study supports the use of combined diagnostic procedures, such as laparoscopy and hysteroscopy, in the evaluation of such patients to ensure thorough assessment and treatment planning.

 

Conclusion

Overall, the study underscores the need for specific attention to endometriosis in the presence of uterine malformations to enhance diagnostic accuracy and improve therapeutic strategies, which could ultimately enhance reproductive outcomes and quality of life in affected women.

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