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Published on: October 10, 2025
The role of Mycoplasma and Ureaplasma in adverse pregnancy outcomes
Amy P Murtha1, James M Edwards2
1Department of Obstetrics and Gynecology, Duke University Medical Center, 2608 Erwin Road, Suite 200, Durham, NC 27705, USA; Division of Maternal Fetal Medicine, Duke University Medical Center, 2608 Erwin Road, Suite 200, Durham, NC 27705, USA; Department of Pediatrics, Duke University Medical Center, 2608 Erwin Road, Suite 200, Durham, NC 27705, USA.
Abstract:
Genital mycoplasmas are frequently found in the vaginal flora across socioeconomic and ethnic groups and have been demonstrated to be involved in adverse perinatal outcomes. Both Mycoplasma and Ureaplasma spp cause inflammation potentially leading to spontaneous preterm birth and PPROM as well as postdelivery infectious complications and neonatal infections. Herein we have provided an overview of the existing literature and supportive evidence for genital mycoplasma's role in perinatal complications. Future research will need to focus on clearly delineating the species, allowing for discrimination of their effects.
Insights
Genital mycoplasmas, including Mycoplasma and Ureaplasma, are linked to adverse perinatal outcomes like preterm birth and neonatal infections. Further research is needed to distinguish the specific effects of each species.
Area of Science:
- Reproductive Health
- Microbiology
- Obstetrics
Background:
- Genital mycoplasmas are common in vaginal flora across diverse populations.
- These bacteria are implicated in negative pregnancy and birth outcomes.
- Inflammation caused by Mycoplasma and Ureaplasma spp. is a potential mechanism.
Purpose of the Study:
- To review existing literature on the role of genital mycoplasmas in perinatal complications.
- To provide evidence supporting the association between these microbes and adverse outcomes.
- To highlight the need for species-specific research.
Main Methods:
- Literature review of studies investigating genital mycoplasmas and perinatal outcomes.
- Analysis of evidence linking Mycoplasma and Ureaplasma species to pregnancy complications.
- Synthesis of findings on infectious complications and neonatal infections.
Main Results:
- Genital mycoplasmas are frequently detected in the vaginal microbiome.
- Evidence supports their role in spontaneous preterm birth and PPROM (preterm rupture of membranes).
- Association with post-delivery infections and neonatal infections is also noted.
Conclusions:
- Genital mycoplasmas contribute to significant perinatal complications.
- Differentiating the impact of specific Mycoplasma and Ureaplasma species is crucial for future research and clinical management.
- Understanding species-specific roles may lead to targeted interventions.
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