ABSTRAK Angka kejadian nyeri menstruasi (dysmenorrhea) di dunia sangat besar, rata-rata lebih dari 50% perempuan disetiap Negara mengalami dysmenorrhea. Menurut data dari WHO, 2010 didapatkan angka kejadian sebesar 1.769.425 jiwa (90%) wanita mengalami dysmenorrhea dengan 10-15% mengalami dysmenorrhea berat. Tujuan penelitian ini adalah untuk mengetahui pengaruh abdominal stretching exercise terhadap penurunan dysmenorrhea pada mahasiswa D III kebidanan STIKes Tri Mandiri Sakti . Metode penelitian yang digunakan adalah analitik kuantitatif metode praeksperimen dengan rancangan desain (one group pre test-post test) dalam satu kelompok dengan analisa uji Wilcoxon Signed Rank Test. Sampel pada penelitian ini sebanyak 19 responden diambil dengan teknik purposive sampling. Analisis penelitian ini menggunakan analisis univariat dan bivariat. Berdasarkan hasil penelitian didapatkan dari 19 responden yang mengalami dysmenorrhea, diperoleh rata-rata skala dysmenorrhea sebelum dilakukan senam 8,00 dan sesudah dilakukan senam diperoleh rata-rata 5,00 Berdasarkan hasil uji analisis terdapat signifikan nilai p-value =0,000 <α=0,05. Ada pengaruh abdominal stretching exercise terhadap penurunan dysmenorrhea pada mahasiswa D III kebidanan STIKES Tri Mandiri Sakti Bengkulu.Kata Kunci: dysmenorrhea; abdominal stretching exercise; remaja putri THE EFFECT OF ABDOMINAL STRETCHING EXERCISE ON DYSMENORRHEA REDUCTIONABSTRACTThe incidence of menstrual pain (dysmenorrheal) in the world is very large, on average more than 50% of women in each country experience dysmenorrheal. According to data from WHO, 2010 there was an incidence of 1,769,425 people (90%) of women having dysmenorrheal with 10-15% having severe dysmenorrheal. The purpose of this study was to determine the effect of abdominal stretching exercise gymnastics on the reduction of dysmenorrheal in students of Diploma of midwifery at STIKES Tri Mandiri Sakti students. The research method used in this quantitative analytical study was pre-experimental method with design design (one group pre-test post test) in one group. With paired simple T-test test analysis and Wilcoxon signed rank test to test the data with normal distribution. The samples in this study were 19 respondents and taken by purposive sampling technique. The analysis of this study used univariate and bivariate analysis with Wilcoxon Signed Rank Test. Based on the results of the study obtained from 19 respondents who experienced dysmenorrheal, obtained on average dysmenorrheal scale before doing 8.00 gymnastics and after doing gymnastics obtained an average of 5.00. Based on the results of the analysis there were significant P-value = 0,000 <α = 0 05 that there is an effect of abdominal stretching exercise on decreasing dysmenorrheal in Diploma midwifery students at level I and II at STIKES Tri MandiriSakti Bengkulu. The conclusion is that there is significant influence of abdominal Stretching to reduce dysmenorrheal pain in Diploma midwifery students of STIKES Tri Mandiri Sakti Bengkulu.Keywords: abdominal stretching exercise; decreasing; female students