110 Jurnal Bidan Cerdas e-ISSN: 2654-9352 dan p-ISSN: 2715-9965 Volume 5 Nomor 3, 2023, Halaman 110 – 120 DOI: 10.33860/jbc.v5i3.2744 Website:https://jurnal.poltekkespalu.ac.id/index.php/JBC Penerbit: Poltekkes Kemenkes Palu Prevention of STI Transmission among Men Who Have Sex with Men in Indonesia through Circumcision Behavior Mona Safitri Fatiah 1 , Rispah Purba 2 1 Faculty of Public Health, Universitas Cenderawasih, Jayapura, Indonesia 2 Faculty of Teacher Training and Education, Universitas Cenderawasih, Jayapura, Indonesia Email korespondensi: mona.s.fatiah@gmail.com ARTICLE INFO ABSTRACT Introduction: The proportion of Sexually Transmitted Infections (STIs) among MSM has increased by around 0,2% from the first quarter and second quarter of 2023, for this reason, prevention efforts are needed in the form of implementing circumcision behavior among men. Objective: to understand the relationship between circumcision and transmission of STIs through MSM in Indonesia. Method: This research has a cross- sectional design with the population being men who have sex with men (MSM) across 24 provinces in Indonesia totaling 6,000 people, while the research sample is mostly MSM totaling 4,290 people with inclusion criteria being: men who are at least 15 years old, have ever had sex with men at least once in the past year, and have lived in the survey city for around one month. Samples were taken using the Respondent Driven Sampling (RDS) technique. The data used is secondary data in the form of 2018-2019 Biological Behavior Survey (STBP) data. Data in the study were analyzed using logistic regression analysis of risk factor models using STATA 14 software. Results: MSM who were circumcised had a 3.0 times greater chance of not having STI symptoms compared to MSM who were not circumcised (95% CI: 2.5- 3.7) after controlling for sex-buying and selling behavior. Conclusion: circumcision behavior is one of the efforts to prevent the spread of STI among MSM, recommending the need to create regulations regarding the importance of circumcision behavior in Indonesia. Article History: Received: 2023-08-05 Accepted: 2023-09-28 Published: 2023-09-30 Keywords: Circumcision; Sexually Transmited Diseases (STIs) Men who have Sex with Men (MSM); Preventive. ©2023 by the authors. Submitted for possible open access publication under the terms and conditions of the Creative Commons Attribution (CC BY SA) license (https://creativecommons.org/licenses/by-sa/4.0/) INTRODUCTION Sexually Transmitted Infections (STI) are one of three causes of public health problems that are a health burden throughout the world (CDC, 2022b; WHO, 2022b). In 2022, every day in the world, more than 1 million new people will be infected with STIs who do not show symptoms, whereas every year it is estimated that around 374 million new infections will be one of the four STIs, namely: Syphilis, Chlamydia, Gonorrhea and Trichomonas Vaginalis (WHO, 2022d). This number, when compared to the target desired by the World Health Organization (WHO) for 2030, which wants a reduction in new STI infections to 9.9 million per year, is certainly still very far away, so it requires great effort and synergy from various parties to be able to prevent the spread this disease (WHO, 2022a). STI cases in the world are spread throughout almost all WHO intervention areas, one of which is the South East Asian (SEA) Region. From data compiled by WHO (2021), member countries in the SEA region have contributed a third of new STI