Influencing Factors of Female Pelvic Floor Myofascial Pain and Its Correlation with Pelvic Floor Surface Electromyography

BAI Ruimin; LI Yanan; SHAO Qingqing; ZHAO Yafei; HUANG Xiuhua; ZHAO Qianqian

doi:10.3969/j.issn.1004-437X.2025.07.007

Abstract：Objective To explore the influencing factors of female pelvic floor myofascial pain and the correlation between pelvic floor myofascial pain and pelvic floor surface electromyography(sEMG)parameters.Methods A retrospective case-control study was conducted to select women who underwent postpartum pelvic floor examination in the First Affiliated Hospital of Zhengzhou University from August 2020 to December 2021 as the study objects.According to the 401 subjects with or without pelvic floor muscle fascia pain,they were divided into the pelvic floor muscle fascia pain group(108 cases)and the non-pelvic floor muscle fascia pain group(293 cases),and the general data were investigated.Two professionally trained pelvic floor rehabilitation therapists conducted manual pelvic floor muscle examination and pelvic floor electromyographic screening.Results There was no significant difference between the two groups in BMI,age,delivery times,interval between the latest delivery date and pelvic floor assessment,newborn birth weight,pregnancy weight gain,and abdominal muscle participation(P＞0.05).The pelvic floor myofascial pain of women with cesarean section was 2.372 times higher than that of women with perineal laceration or lateral section,and the difference was statistically significant(P=0.030).There was no statistically significant difference between the two groups in the parameters of pelvic floor muscle surface electromyography(P＞0.05).Conclusion Cesarean section is a risk factor for pelvic floor myofascial pain and should not be chosen as a delivery method to protect pelvic floor muscle.Pelvic floor muscle evaluation requires manual palpation to determine the presence of pain,and can not only do EMG screening to evaluate the pelvic floor muscle.