Related Experiment Video
Updated: Oct 29, 2025

09:00
The Rabbit Blood-shunt Model for the Study of Acute and Late Sequelae of Subarachnoid Hemorrhage: Technical Aspects
Published on: October 2, 2014
13.9K
Analysis of puerperal hematoma: a retrospective study
Masaaki Kawashima1, Hidemasa Tokushige1
1Department of Obstetrics and Gynecology, JA Kochi Hospital, Japan.
Journal of Rural Medicine : JRM
|July 9, 2021
Summary
Puerperal hematoma risk factors include primigravida status. For multigravida women, maternal age, instrumental delivery, and episiotomy increase risk. Hematomas often occur on the right side and require surgical treatment.
Area of Science:
- Obstetrics and Gynecology
- Perinatal Medicine
Background:
- Puerperal hematoma is a significant postpartum complication.
- Identifying risk factors and characteristics is crucial for timely management.
Purpose of the Study:
- To evaluate the characteristics and risk factors associated with puerperal hematoma.
Main Methods:
- Retrospective analysis of medical records of 2,776 women undergoing vaginal delivery.
- Data collected between January 2008 and December 2017.
Main Results:
- Primigravida status identified as a key risk factor.
- In multigravida women, advanced maternal age, instrumental delivery, and episiotomy were significant risk factors.
- Hematomas frequently occurred on the right side (61.5%), were often large (≥50 mm, 53.8%), detected early (within 2h, 61.5%), associated with severe pain (46.2%), and required surgical intervention (61.5%).
Conclusions:
- Primigravida status is a risk factor for puerperal hematoma.
- Maternal age, instrumental delivery, and episiotomy are risk factors in multigravida women.
- Hematoma characteristics include right-sided prevalence, association with pain, and frequent need for surgery, particularly when severe.

