The Effect of Lavender Aromatherapy on Dysmenorrhea Pain Among Adolescent Girls at SMPN 1 Rengat Barat, Indragiri Hulu Regency, 2026

Dysmenorrhea is a health problem among adolescent girls that can make it difficult to concentrate during learning activities. One treatment approach is aromatherapy using essential oils. This study aimed to determine the effect of lavender aromatherapy on dysmenorrhea pain among adolescent girls at SMP Negeri 1 Rengat Barat, Indragiri Hulu Regency. This was a quantitative pre-experimental study using a one-group pretest-posttest design. The sample consisted of 28 adolescents selected using purposive sampling, with data collected using a questionnaire. Data were analyzed using a paired-samples t-test. The results showed that the mean dysmenorrhea pain score before lavender aromatherapy was 6.46, while after lavender aromatherapy it was 1.25. The paired-samples t-test yielded t = 12.262 and p = 0.000; because p < 0.05, there was a significant difference before and after lavender aromatherapy. Lavender aromatherapy therefore affected reducing dysmenorrhea pain among adolescent girls at SMPN 1 Rengat Barat, Indragiri Hulu Regency.