ABSTRAKLatar belakang: Dismenorea merupakan salah satu gangguan menstruasi. DiIndonesia, angka kejadian dismenorea sebesar 55%. Remaja putri yang tidakmempunyai pengetahuan baik mengenai dismenorea tidak akan mampu mencegahdismenorea dengan sikap positif. Akibatnya dismenorea dapat menjadi masalahyang mengganggu aktivitas.Tujuan: Penelitian bertujuan untuk mengetahui hubungan pengetahuan tentangdismenorea dengan sikap pencegahan dismenorea pada siswi SMK Negeri 1Sukoharjo.Metode: Penelitian menggunakan desain observasional analitik dengan rancangancross sectional. Teknik sampling yang digunakan proporsional random samplingdengan jumlah sampel 184 siswi. Instrumentasi penelitian menggunakankuesioner. Analisis data menggunakan uji statistik kendall’s tau.Hasil: 87 siswi (47,3%) mempunyai pengetahuan cukup tentang dismenorea dan95 siswi (51,6%) mempunyai sikap negatif mencegah dismenorea. Hasil analisiskendall’s tau yaitu p = 0,000 dengan r = 0,302.Simpulan: Ada hubungan yang bermakna antara pengetahuan tentang dismenoreadengan sikap pencegahan dismenorea pada siswi SMK Negeri 1 Sukoharjo,maknanya adalah semakin tinggi pengetahuan tentang dismenorea semakin tinggipula sikap pencegahan dismenorea.Kata kunci: Pengetahuan, Sikap, dan DismenoreaABSTRACTBackground: Dismenorrhea is one of the menstrual disorders. In Indonesia theincidence rate of dismenorrhea was 55%. Female teenagers who do not haveknowledge on dismenorrhea will not be able to prevent with dismenorrhea with apositive attitude. A result, dismenorrhea is potential to interfere their activities.Objective: The objective of this research is to investigate the corellation betweenthe knowledge on dismenorrhea and the attitude to prevention with dismenorrheaof the students of Vocational High School 1 of Sukoharjo.Method: This research used the observational analytical research method with thecross sectional design. The samples of the research were taken by using theproportional random sampling technique. They consisted of 184 students. Thedata of the research were gathered through quisioner. They were then analyzed byusing the statistical test of kendall’s tau.Result: 87 students (47,3%) have adequate knowledge on dismenorrhea and 95students (51,6%) have a negative attitude to prevent with dismenorrhea. Kendall’stau statistic result is p = 0,000 with that of r = 0,302.Conclution: There is a significant corellation between the knowledge ondismenorrhea and the attitude to prevention with dismenorrhea of the students ofVocational High School 1 of Sukoharjo, meaning that the higher the knowledgeon dismenorrhea is, the higher the attitude to prevention with it.Key word: Knowledge, Attitude, and Dismenorrhea