Background and Objective: Endometriosis is a chronic gynecological condition that affects approximately 10% of women of reproductive age. Chronic pelvic pain is a common symptom of endometriosis and can have a significant impact on a woman's quality of life, including sexual satisfaction. Botulinum toxin injection has been used as a treatment for chronic pelvic pain in endometriosis, but its effect on sexual satisfaction is not well understood.
Methods: A randomized controlled trial was conducted to evaluate the effect of botulinum toxin injection on chronic pelvic pain and sexual satisfaction in women with endometriosis. The study included 32 women with endometriosis who were randomly assigned to receive either botulinum toxin injection or placebo. The primary outcome measure was change in chronic pelvic pain assessed using the visual analog scale (VAS) at one month after treatment. Secondary outcome measures included changes in sexual satisfaction assessed using the Female Sexual Function Index (FSFI) at one month after treatment.
Results: The results showed that botulinum toxin injection significantly reduced chronic pelvic pain compared to placebo at one month after treatment (p<0.001). There was also a significant improvement in sexual satisfaction in the botulinum toxin group compared to placebo at one month after treatment (p=0.001).
Conclusion: Botulinum toxin injection may be an effective treatment option for women with endometriosis, chronic pelvic pain and sexual dysfunction.
This research was also registered with the code IRCT20091012002576N20 in the Clinical Trial Registration Center of Iran. Date of registration performed between July2021and July 2022