Pati Aji AchdiatBudi SujatmikoALIFA NURUL IZZATI MAHDA2024-06-112024-06-112023-02-21https://repository.unpad.ac.id/handle/kandaga/130110190190Introduction: Sexually transmitted infections (STIs) have a major impact on sexual and reproductive health and the quality of life Based on data from the West Java, Indonesia, Health Office, Bandung city became the city or regency with the second-highest HIV cases in West Java Province in 2022, with a total of 2,212 cases.Iin Bandung City, approximately one third of young men sex men are diagnosed with HIV. The knowledge level about STIs among MSM is fundamental to be identified to prevent an increase in STI numbers. Method: This study is a descriptive study with a questionnaire. The data collection was done online with a total sampling technique of men who have sex with men in the Srikandi Pasundan community of Bandung City. Result: Most respondents’ knowledge level, as many as 139 (65.57%), were classified as having sufficient knowledge level. Discussion: .The level of respondents’ knowledge is considered at the sufficient level in this research. Of the six aspects questioned in the questionnaire, the respondents received the most category of less good knowledge on the aspect of transmission and the most category of good knowledge on the aspect ofsign and symptom.sexually transmitted infectionSTIknowledge