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Review

Chronic Endometritis: A Silent Contributor to Infertility and Reproductive Failure—A Comprehensive Review

1
Obstetrics-Gynecology Department, Faculty of Medicine and Pharmacy, University of Oradea, 410087 Oradea, Romania
2
Faculty of Medicine and Pharmacy, University of Oradea, 1st December Square 10, 410073 Oradea, Romania
3
Department of Peclinical Discipline, Apollonia University, 700511 Iasi, Romania
4
Calla—Infertility Diagnostic and Treatment Center, Constantin A. Rosetti Street, 410103 Oradea, Romania
5
Pelican Clinical Hospital, Corneliu Coposu Street 2, 410450 Oradea, Romania
*
Authors to whom correspondence should be addressed.
Reprod. Med. 2025, 6(2), 14; https://doi.org/10.3390/reprodmed6020014
Submission received: 13 March 2025 / Revised: 21 April 2025 / Accepted: 19 May 2025 / Published: 3 June 2025

Abstract

Chronic endometritis (CE) is a persistent, often asymptomatic inflammatory condition of the endometrium, increasingly recognized as a potential contributor to infertility and recurrent implantation failure. Despite its clinical significance, CE remains underdiagnosed due to a lack of standardized diagnostic criteria and its subtle clinical presentation. Objective: This review aims to synthesize the current evidence on the pathophysiology, diagnosis, and treatment of CE, highlighting its impact on reproductive outcomes and the effectiveness of therapeutic interventions. A comprehensive literature review was conducted, analyzing 85 peer-reviewed studies published in the last decade, of which 65 were deemed relevant and retained for further analysis. These studies were selected based on their relevance to the pathophysiology, diagnostic methodologies, and treatment outcomes for CE, focusing on their implications for fertility and assisted reproductive technologies (ARTs). The findings suggest that CE is associated with impaired endometrial receptivity, increased inflammatory markers, and reduced implantation and pregnancy rates with ARTs. Histopathological assessment using CD138 immunostaining remains the gold standard for diagnosis, while hysteroscopy and molecular microbiological techniques provide complementary diagnostic value. Antibiotic treatment has been shown to significantly improve implantation rates and pregnancy outcomes, particularly in women with recurrent implantation failure. Emerging therapies, including probiotics and regenerative medicine approaches, are being explored as potential adjuncts to the conventional treatment. Early and accurate diagnosis of CE is essential for optimizing reproductive outcomes. Standardized diagnostic protocols and individualized treatment strategies are crucial for improving implantation success and pregnancy rates in affected women. Future research should focus on refining the diagnostic methods and exploring novel therapeutic options to enhance endometrial health and fertility outcomes.
Keywords: chronic endometritis (CE); implantation; fertility chronic endometritis (CE); implantation; fertility

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MDPI and ACS Style

Lucan, M.; Sandor, M.; Bodog, A.; Mocuta, D.; Aur, C.D.; Sachelarie, L.; Huniadi, A. Chronic Endometritis: A Silent Contributor to Infertility and Reproductive Failure—A Comprehensive Review. Reprod. Med. 2025, 6, 14. https://doi.org/10.3390/reprodmed6020014

AMA Style

Lucan M, Sandor M, Bodog A, Mocuta D, Aur CD, Sachelarie L, Huniadi A. Chronic Endometritis: A Silent Contributor to Infertility and Reproductive Failure—A Comprehensive Review. Reproductive Medicine. 2025; 6(2):14. https://doi.org/10.3390/reprodmed6020014

Chicago/Turabian Style

Lucan, Mihai, Mircea Sandor, Alin Bodog, Diana Mocuta, Cristina Daniela Aur, Liliana Sachelarie, and Anca Huniadi. 2025. "Chronic Endometritis: A Silent Contributor to Infertility and Reproductive Failure—A Comprehensive Review" Reproductive Medicine 6, no. 2: 14. https://doi.org/10.3390/reprodmed6020014

APA Style

Lucan, M., Sandor, M., Bodog, A., Mocuta, D., Aur, C. D., Sachelarie, L., & Huniadi, A. (2025). Chronic Endometritis: A Silent Contributor to Infertility and Reproductive Failure—A Comprehensive Review. Reproductive Medicine, 6(2), 14. https://doi.org/10.3390/reprodmed6020014

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