Background: Adenomyosis is a common benign disorder in pre-menopausal women that presents with uterine enlargement, pelvic pain, heavy menstrual bleeding, and dysmenorrhea. However, its risk factors have not been clearly determined. The aim of this study was to determine whether prior uterine surgery is a risk factor for adenomyosis.

Methods: In this cross-sectional study, we reviewed the medical records of all women who had hysterectomies for benign and a non-emergency, gynecological condition during 2001–2011 at Shariati Hospital in Bandar-Abbas, Iran. The variables in the study included age, gravidity, parity, abortion, prior uterine surgery, and the size of the uterus before hysterectomy. The data were analyzed by Microsoft Excel and SPSS version 16, by conducting descriptive statistics, by the t-test, and by Analysis of Variance (ANOVA).

Results: Of the 191 participants, 72 women (37.7%) had pathologically-confirmed adenomyosis.  Women with adenomyosis reported a history of prior uterine surgery more frequently than women without adenomyosis (P = 0.01), but age, menarche, gravidity, parity, and history of abortion were similar between the two groups (P > 0.05).

Conclusion: History of prior uterine surgery is a risk factor for adenomyosis.   

Key words: uterine surgery, adenomyosis, myomectomy
» HTML Fulltext    » PDF Fulltext    » doi: 10.14661/2014.912-918

Current Issue

October-December 2019 (Volume 11, Issue 4)


The 6th World Conference on Research Integrity (WCRI) is to be held on June 2-5, 2019 in Hong Kong.

The WCRI is the largest and most significant international conference on research integrity. Since the first conference in Lisbon in 2007, it has given researchers, teachers, funding agencies, government officials, journal editors, senior administrators, and research students opportunities to share experiences and to discuss and promote integrity in research. Read more:


TDR Clinical Research and Development Fellowships

Call for applications

Deadline for submission: 7 March 2019, 16:00 (GMT)

TDR provides fellowships for early- to mid-career researchers and clinical trial staff (e.g. clinicians, pharmacists, medical statisticians, data managers, other health researchers) in low- and middle-income countries (LMICs) to learn how to conduct clinical trials. Read more:

Meta-Analysis Workshops in New York, USA, and London, UK, in April and May 2019

Don't miss this exceptional opportunity to learn how to perform and report a Meta-analysis correctly. Two Meta-analysis workshops are organized in April and May 2019 by Dr. Michael Borenstein in New York, USA (April 08-10, 2019) and London, UK (May 27-29).

About the Instructor

Dr. Michael Borenstein, one of the authors of Introduction to Meta-Analysis, is widely recognized for his ability to make statistical concepts accessible to researchers as well as to statisticians. He has lectured widely on meta-analysis, including at the NIH, CDC, and FDA. Read more: