Congenital syphilis: adverse pregnancy outcomes and neonatal disorders

Baihuan Duan1, Yuefang Zhou1, Xinyi Wang1

  • 1Institute of Pathogenic Biology and Key Laboratory of Special Pathogen Prevention and Control of Hunan Province, Hengyang Medical College, University of South China, Hengyang Central Hospital, Hengyang, China.

Infection
|June 23, 2025
PubMed

Insights

Congenital syphilis, caused by Treponema pallidum, significantly impacts maternal and infant health. Early detection and penicillin G treatment are vital for preventing severe complications and improving outcomes.

Area of Science:

  • Infectious Diseases
  • Maternal-Fetal Medicine
  • Neonatology

Background:

  • Treponema pallidum transmission during pregnancy and after birth leads to congenital syphilis.
  • Congenital syphilis causes severe neonatal health issues, including developmental delays and organ damage.
  • The global prevalence of congenital syphilis is increasing, with rates rising significantly between 2015 and 2021.

Purpose of the Study:

  • To analyze adverse pregnancy outcomes associated with syphilis.
  • To review neonatal disorders resulting from congenital syphilis.
  • To promote innovative strategies for prevention and early diagnosis.

Main Methods:

  • This review analyzes diagnostic data and existing literature on congenital syphilis.
  • It examines adverse pregnancy outcomes like preterm birth, miscarriage, and stillbirth.
  • The review also details neonatal complications, including skin and skeletal malformations.

Main Results:

  • Syphilis infection during pregnancy can lead to severe fetal and neonatal complications.
  • Penicillin G remains the primary and effective treatment for syphilis.
  • Escalating global rates highlight an urgent need for improved interventions.

Conclusions:

  • Early detection and treatment are critical for mitigating congenital syphilis risks.
  • Developing novel preventive and diagnostic approaches is essential.
  • Reducing congenital syphilis incidence enhances maternal and infant health and societal well-being.

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