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Reproductive health is a crucial factor in adolescent development, particularly among Generation Z, characterized by rapid technological advancements, changing lifestyles, and increased exposure to risky behaviors. A lack of understanding of reproductive health among adolescents can lead to various physical and mental health problems, including reproductive infections, sexually transmitted infections, and mental health issues. This community service program aims to broaden adolescents' knowledge and awareness of the importance of maintaining reproductive health in the Generation Z era. The activity was held on December 6, 2025, at Nur Adia High School and involved 60 students as participants. The methods applied in this program included health education, interactive discussions, and question-andanswer sessions. The results showed an increase in participants' understanding of reproductive health, personal hygiene practices, healthy lifestyles, and prevention of risky behaviors. It is hoped that this activity can be a preventative measure in increasing awareness of reproductive health and supporting the development of a healthy and responsible young generation. Keywords: Reproductive Health, Gen Z Youth, Health Education

The Three Threats to Reproductive Health (KRR Triad) refer to serious issues that can endanger adolescent reproductive health: sexually transmitted infections (STIs), HIV/AIDS, and drug abuse. These threats often lead to harmful consequences such as reproductive diseases, unintended pregnancies, abortion, and drug addiction. The root causes include insufficient knowledge among adolescents and negative attitudes toward prevention efforts. This Community Service initiative, titled Empowerment of Adolescents with Behavior Toward the Three Basic Threats to Reproductive Health (KRR Triad), was conducted in Bangun Rejo Village, Tanjung Morawa District, Deli Serdang Regency, in 2025. The program aimed to increase adolescents’ understanding of the KRR Triad, including its definitions, categories, impacts, and prevention strategies, while also fostering a proactive attitude among youth in addressing these threats. The participants were adolescents residing in Bangun Rejo Village. The activities were conducted from March to May 2025. The method involved a lecture-based educational session, accompanied by a pre-test and post-test to measure the participants’ knowledge and understanding. Prior to the intervention, 46.6% (14 participants) demonstrated poor knowledge regarding the KRR Triad. After the educational sessions, knowledge significantly improved, with 56.6% (17 participants) showing increased understanding. These findings indicate that structured education on reproductive health threats can effectively enhance adolescents' knowledge and potentially influence their behavior toward healthier choices. In conclusion, the community service program successfully empowered adolescents in Bangun Rejo Village with essential knowledge and awareness regarding the KRR Triad, underlining the importance of continuous reproductive health education to mitigate the risk of future health problems among youth

This study aims to improve adolescents' knowledge and behavior regarding reproductive health through counseling and education at SMK 1 Krian. The background highlights the low awareness of reproductive health among Indonesian youth, leading to issues such as unwanted pregnancies and sexually transmitted infections. The counseling program involved 12th-grade students and teachers, utilizing interactive methods to engage participants effectively. Results indicate a significant increase in knowledge, with average scores rising from 55% to 80% post-counseling. Additionally, 70% of students reported positive behavioral changes, such as increased willingness to discuss reproductive health issues. Participant feedback was overwhelmingly positive, with 85% finding the information beneficial. However, challenges remain, particularly regarding access to accurate information. The findings emphasize the necessity for ongoing education and community support to sustain positive changes in adolescents' reproductive health awareness and behavior.

Background: Reproductive health is complete physical, mental and social well-being in all matters relating to reproductive systems and functions and processes and not just conditions that are free from disease and disability. One of the reproductive health problems that we are often familiar with is sexually transmitted infections. Sexually Transmitted Infections (STI) are infectious diseases that are transmitted mainly through sexual contact, and are currently still a public health problem throughout the world, both in developed (Industrial) countries and in developing countries. Research Objective: To determine the effect of health promotion about STI (Sexually Transmitted Infections) on community knowledge, in this case teenagers in Pukdale Village, East Kupang District. Research Method: This type of research uses the Quasi Experiment One Group Pre Test-Post Test method, using the Wilcoxon analysis test. This research was conducted in October 2023. Using a total sampling of 45 respondents as samples. The questionnaire used consisted of 20 statement items. Results: The relationship between health promotion and adolescent knowledge of sexually transmitted infections, before health promotion regarding STIs was carried out, 2 respondents (4.4%) had good knowledge, 14 respondents (31.3%) had sufficient knowledge, and 29 respondents (64.4%) had good knowledge. less and after health promotion regarding STIs was carried out, 17 respondents (37.8%) had good knowledge, 20 respondents (44.4%) had sufficient knowledge, and 8 respondents (17.8%) had poor knowledge. The relationship results use the correlation test ρ = 0.000 < 0.05. Conclusion: There is a significant relationship between health promotion and public knowledge, in this case teenagers, regarding Sexually Transmitted Infections after health promotion is carried out.

Background: Adolescent problems are things that should be highlighted at this time, this is because youth is a transitional period that will cause various problems. According to the BKKBN (2012) the problems that stand out among adolescents are issues around the Adolescent Reproductive Health Triad (KRR), namely sexuality, HIV/AIDS and drugs. The results of the 2012 Indonesian Demographic Health Survey (IDHS) for Adolescent Reproductive Health (KRR) showed that 9.3% of adolescents stated that they had had premarital sex. Based on data from the National Narcotics Agency (BNN) in 2014, 27.32% of students were drug users. The low knowledge of adolescents about reproductive health is inadequate which can be seen by only 35.3% of young women and 31.2% of young men aged 15-19 years knowing that a woman can get pregnant with one sexual intercourse. Adolescents' knowledge of sexually transmitted infections (STIs) is still low where only 35% of women and 19% of men know gonorrhea, 14% of women and 4% of men know about genital herpes while other types of STIs are below 1%.

Background: Sexually Transmitted Infections are diseases that are transmitted through sexual contact. Most of the sufferers of this disease are adolescents aged 15-24 years. The high risk factor for this disease is adolescents because of the usual premarital sexual behavior. Sexuall transmission disease are still a health problem in various countries. One of the reasons is the relatively low level of adolescent knowledge. The purpose of this study was to describe the level of adolescent knowledge about sexually transmitted infections in SMA Negeri 1 Singaraja. Method:  This research uses descriptive method with survey approach. The population in this study were teenagers in SMA Negeri 1 Singaraja with a sample of 293 samples. The sampling technique used in this study was simple random sampling. The measuring instrument in this study used a closed questionnaire with 30 questions. The data is then processed using SPSS. The data analysis method in this research is qualitative data analysis method. Results: The results of the 293 respondents, the knowledge of adolescents about sexually transmitted infections were mostly in the good category. Adolescents with a good level of knowledge were 260 respondents (88.7%), 30 respondents (10.2%) in moderate category, and 3 respondents (1.0%) in poor category. Conclusion: The majority of adolescents' knowledge level about sexually transmitted infections in SMA Negeri 1 Singaraja was in the good category as many as 260 respondents (88.7%). The results of this study are expected to be input for adolescents to always pay attention to their health and as an effort to prevent sexually transmitted infections.