Background: Acupuncture therapy has already extensively used in many countries around the world to treat primary dysmenorrhea. But there is no bibliometric analysis on this aspect. Therefore, the purpose of this study is to evaluate the research trends of acupuncture therapy in the treatment of primary dysmenorrhea through literature research from 2001 to 2021 by using Citespace 6.1.R1(64-bit) Basic. Methods: Relevant literature is extracted from the Web of Science database. CiteSpace conducts cooperative network analysis on the information of authors, countries and institutions, co-occurrence network analysis on keywords, and co-citation analysis on cited journals, cited authors and cited references. Results: A total of 189 publications were extracted from 2001 to 2021. The total numbers of publication have steadily increased over the past two decades, and we have identified the most active countries, institutions, journals and authors in the field of acupuncture for primary dysmenorrhea. The EVID-BASED COMPL ALT was the most productive journal, and the COCHRANE DB SYST REV with the highest IF. The first in the frequency and centrality is the journal of AM J OBSTET GYNECOL. The most productive country and institution are China and Beijing University Chinese Medicine. YANG J was the most prolific author and CHEN H had the highest citation counts. The centrality of cite references ranked the first conducted by Burnett M. The keyword of "primary dysmenorrhea" ranked first for research developments with the highest frequency. Conclusion:The research results of Metrology in this paper provide the current situation and trend of clinical research on primary dysmenorrhea acupuncture Therapy in recent twenty-one years, which is helpful for researchers to identify the hot spots in this field and explore new directions of future research.

Background Acupuncture therapy is a unique technology created by the working people in ancient China. It is popular all over the world for its safety, effectiveness and no side effects, especially for the treatment of pain syndrome, it can often have an immediate effect. Tension-type headache is one of them. At present, many literatures have reported that many countries in the world are using acupuncture to treat tension-type headache, but there is no quantitative analysis of the relevant literature on this field. Therefore, This study aims to evaluate the research hotspots and trends of acupuncture treatment of tension-type headache through a macro review of the literature from 2003 to 2022 by using CiteSpace V6.1.R6 (64-bit) Basic. Methods Relevant literatures on acupuncture treatment of tension-type headache from 2003 to 2022 were extracted from the web of science core collection database. CiteSpace was used to analyze the data of publications, authors, institutions, countries, keywords and cited references, cited authors, cited journals. Draw the cited network map and analyze the research hotspots and trends. Results A total of 231 publications were retrieved from 2003 to 2022. In the past 20 years, the annual number of publications has shown an overall growth trend, and the most active journals, countries, institutions, authors, cite references and keywords in the field of acupuncture treatment of tension-type headache were identified. Conclusion This study provides the status and trends of clinical research in the field of acupuncture therapy for tension-type headache in the past 20 years, which will help researchers understand the research hotspots in this field and provide new directions for further research.