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Does symphysiolysis during pregnancy affect obstetric outcomes?

Hila Shalev-Ram^1,2, Yael Rosental^1,3, Gal Cohen^1,2

¹Department of Obstetrics and Gynecology, Meir Medical Center, Kfar Saba, Israel.

International Journal of Gynaecology and Obstetrics: the Official Organ of the International Federation of Gynaecology and Obstetrics

|May 3, 2025

Summary

Symphysiolysis, a condition causing pain during pregnancy, does not increase the risk of obstetrical or neonatal complications. This study found no significant differences in labor characteristics or adverse outcomes for women with symphysiolysis compared to controls.

Keywords:

high‐risk pregnancy neonatal outcomes pain in pregnancy pelvic girdle pain pelvic instability pregnancy complications second stage of labor symphysis pubis

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Area of Science:

Obstetrics and Gynecology
Perinatal Medicine
Maternal-Fetal Medicine

Background:

Symphysiolysis is a common condition during pregnancy, associated with pain and anxiety.
Limited data exists on the impact of symphysiolysis on obstetrical and neonatal outcomes.
Understanding these outcomes is crucial for managing pregnant individuals with symphysiolysis.

Purpose of the Study:

To compare obstetrical and neonatal outcomes between women with and without symphysiolysis.
To analyze labor characteristics in women diagnosed with symphysiolysis.
To provide evidence-based information for clinical practice regarding symphysiolysis.

Main Methods:

Retrospective cohort study of women attempting vaginal delivery (≥37 weeks gestation) from 2013-2021.
Comparison between women diagnosed with symphysiolysis and a control group without the diagnosis.
Analysis of maternal, delivery, obstetrical, and neonatal outcomes, with adjustments for confounding variables.

Main Results:

No significant differences were observed in obstetrical outcomes (e.g., labor duration, operative delivery rates, perineal lacerations) between groups.
Adverse neonatal outcomes, including Apgar scores and NICU admissions, were similar in women with and without symphysiolysis.
Women with symphysiolysis were younger and had higher pre-pregnancy BMI and smoking rates during pregnancy.

Conclusions:

Symphysiolysis does not appear to increase the risk of obstetrical complications during labor.
Neonatal outcomes are not adversely affected by the presence of symphysiolysis.
This suggests that symphysiolysis, while symptomatic, does not compromise labor or neonatal safety.