Background:
     
     The historical and cultural importance of traditional, complementary, and integrative medicine (TCIM) is observable in diverse contexts and among different populations. As the use of TCIM continues to grow globally, policymakers need to acknowledge its importance in healthcare services.
   

Objectives:
     
     We conducted a scoping review of quantitative, qualitative, and mixed-method research to identify the factors that promote and hinder the adoption of TCIM.
   

Methods:
     
     This scoping review involved a comprehensive search of online databases from 2000 to February 2024. The review utilized the methodology suggested by Arksey and O'Malley. Qualitative content analysis was employed to synthesize the data.
   

Findings:
     
     From a total of 1403 articles retrieved, 61 full-text articles were chosen for the final analysis. Among these, 47 examined facilitators, 4 addressed barriers, and 10 investigated both barriers and facilitators of using TCIM. Three key themes were recognized concerning barriers to using TCIM services, including "service delivery problems", "governance challenges", and "personal barriers". Six key themes associated with the factors facilitating the use of TCIM services were recognized, which include "financial facilitators", "health conditions", "personal determinants", "perceived benefits", "social impact", and "appropriate service delivery".
   

Conclusions:
     
     Exploring the barriers and facilitators of using TCIM services can provide valuable insights to policymakers, enabling them to develop strategies to overcome existing challenges and enhance the support for the growth of these services. This knowledge is essential for making sure that TCIM services are available to people in a safe, prompt, and high-quality way.