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Background: Vulvodynia (VVD) is a debilitating chronic vulvar pain significantly affecting patients' quality of life. Interstitial cystitis/bladder pain syndrome (IC/BPS) is a chronic and complex illness characterized by an unpleasant sensation related to the filling of the bladder and it strongly impacts patients' lives. The exact mechanisms of the two syndromes remain unknown, but there is an overlap between suspected pathophysiologies. Objective: To present an overview of the current research on the association between VVD and IC/BPS. Search Strategy: A systematic search of three electronic databases was conducted. Studies examining the correlation between VVD and IC/BPS with male and female patients aged over 18 years were included. Selection Criteria: Studies assessing the coexistence of VVD and IC/BPS were included. Reviews, letters to the editor, conference abstracts, book chapters, guidelines, Cochrane reviews, and expert opinions were excluded. Data Collection and Analysis: Two reviewers screened the studies for eligibility. Eligible studies were screened for quality. Main Results: A total of 13 studies were included in the final review. Among them, 11 presented a positive association between the two syndromes. The studies highlighted that VVD and IC/BPS share common comorbidities and possibly etiopathogenic pathways. Conclusion: VVD and IC/BPS are both complex and multifactorial syndromes. This review highlights an association between them, but additional studies on the topic should be conducted for a more precise conclusion. Synopsis: Vulvodynia and interstitial cystitis are both chronic pelvic pain conditions that often coexist. They are characterized by a similar etiopathogenetic pathway and common comorbidities. [ABSTRACT FROM AUTHOR]