To gain a better understanding of young adults' knowledge and level of awareness about the global issue of HIV/AIDS, the researcher conducted a purposeful review of 25 qualified documents and consolidated findings from 2012 to 2017 using data search engines such as ProQuest, CINAHL, PubMed, and Ebscohost. The researcher screened and validated research using a content analysis technique. Due to the diversity of possible findings, the review used a certain degree of constraint as a selection criterion. To select noteworthy and pertinent review outcomes, a multi-stage technique is devised. According to the findings, having a thorough understanding of HIV/AIDS transmission has a favorable effect on sexual behaviors and attitudes and is considered a critical step toward behavioral change. The findings assessed the level of knowledge and revealed that nearly all young adults (15-24 years old) had heard of HIV/AIDS; however, they had misconceptions about the infection, believing it is curable, and having doubts about the effectiveness of educational programs and the government's ability to provide services to the affected population. Additionally, factors leading to the low level of knowledge and awareness of the issue have been identified, including perceptions of HIV risk factors, lack of access, and safety concerns about not using condoms and contraceptives, among others. As a result, it is determined that young people's knowledge must be evaluated objectively in order to dispel misconceptions and myths about HIV/AIDS.