This study is designed as a randomized controlled trial aiming to compare the effectiveness of different educational approaches in improving dysmenorrhea self-care and genital hygiene behaviors among adolescent girls. Participants will be allocated into three groups: an artificial intelligence-supported mobile education group, a face-to-face education group, and a brochure-based control group. The intervention process will be conducted using a pretest-posttest design, with assessments performed at baseline, 4 weeks after baseline, and 8 weeks after baseline. In the artificial intelligence-supported mobile education group, participants will receive individualized and interactive content, while the same content will be delivered directly by the researcher in the face-to-face education group, and written informational materials will be provided to the control group. Valid and reliable instruments assessing dysmenorrhea self-care behaviors and genital hygiene practices will be used for data collection. The findings are expected to provide evidence on the effectiveness of digital health interventions in adolescent health and contribute to the development of nursing practices and health education programs.