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Related Experiment Video

Updated: Jun 11, 2026

Multiplexed Fluorescent Immunohistochemical Staining of Four Endometrial Immune Cell Types in Recurrent Miscarriage
05:16

Multiplexed Fluorescent Immunohistochemical Staining of Four Endometrial Immune Cell Types in Recurrent Miscarriage

Published on: August 4, 2021

Recurrent pregnancy loss: unexplained or misunderstood?

Alexis O'Connell1, Ovgu Barut1, Luis R Hoyos2,3

  • 1Department of Obstetrics & Gynecology, HCA Healthcare East Florida Division.

Current Opinion in Obstetrics & Gynecology
|June 10, 2026
PubMed
Summary
This summary is machine-generated.

Recurrent pregnancy loss (RPL) evaluation benefits from genetic testing of products of conception (POC) and partner assessment. Identifying specific causes, including paternal factors, improves outcomes and avoids ineffective treatments.

Keywords:
recurrent miscarriagerecurrent pregnancy lossunexplained

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Area of Science:

  • Reproductive Medicine
  • Genetics
  • Obstetrics

Background:

  • Recurrent pregnancy loss (RPL) is a complex condition with diverse definitions and frequent misunderstanding.
  • Identifying the etiology of RPL is crucial for effective management.

Purpose of the Study:

  • To review recent advancements in understanding the genetic, paternal, anatomic, metabolic, immunologic, and infectious causes of RPL.
  • To provide insights into unexplained RPL cases.

Main Methods:

  • Comprehensive literature review of recent studies on RPL.
  • Analysis of genetic testing of products of conception (POC).
  • Evaluation of additional factors like metabolic health, chronic endometritis, adenomyosis, and paternal contributors.

Main Results:

  • Genetic testing of POC combined with standard evaluation identifies causes in most RPL cases.
  • Paternal factors, metabolic health, chronic endometritis, and adenomyosis are important considerations for unexplained RPL.
  • Preimplantation genetic testing for aneuploidy is beneficial for specific patient groups.
  • Many empiric treatments for unexplained RPL lack proven benefit.

Conclusions:

  • A thorough RPL evaluation requires POC genetic testing and assessment of both partners.
  • An individualized, targeted approach optimizes outcomes and reduces costs and ineffective therapies.
  • Paternal factors are increasingly recognized and should be integrated into RPL evaluation and management.