Education counseling to prevent early marriage in adolescents in Desa Sukamakmur, Jember

Child marriage is a formal or informal union between child under 18 years old and an adult another child. The prevalence of in Indonesia still high. In East Java, the 10,44%. Several factors contribute to this phenomenon, such as low education, financial needs, culture, arranged marriage, free sex, pregnancy before marriage. has many negative impacts, especially from health perspective, because adolescent's immature reproductive organs, knowledge, mentality. This study aims analyze effect counseling on adolescent knowledge about at SMP Plus Al-Ishlah SMK Multi-Media, Jember. method used was Pre-Experimental with One Group Pre-test - Post-test research design. population were students totaling 131 students. number samples 80 respondents. sampling technique random sampling. data collected using questionnaire. results show significant difference level after Multi-Media. It proven by p-value 0,001 ≤ α 0,05. concludes that increases health. There increase organ anatomy, how maintain sexually transmitted diseases (STDs), HIV/AIDS.