Abstract: Adolescents always complain of dysmenorrhea, which can affect daily
activities, academic performance, and overall, well-being. Decreased awareness of
effective prevention and self-care strategies always increase the severity of symptoms.
Purpose: To evaluate the effect of applying Nola Pender’s health promotion model on selfcare strategies for managing dysmenorrhea among adolescents. Setting: Faculty of
Nursing, Benha University, Egypt. Design: A quasi-experimental study design. The study
was carried out at Benha University's Faculty of Nursing in Egypt. Sampling: A purposive
sample of 223 female students from the first academic year (2025–2026) were included.
Instruments: Instrument one: A structured self-administered questionnaire: consisted of
two parts: General Characteristics and Adolescent’s Menstrual history, Instrument two:
knowledge of dysmenorrhea and self-care strategies, Instrument three: WaLIDD
questionnaire, Instrument four: health promotion lifestyle profile II, and Instrument five:
Adolescent dysmenorrhea self-care strategies Scale. Results: There were highly
statistically significant improvements in students’ knowledge, dysmenorrhea self-care
strategies and health‑promoting lifestyle scores postintervention and follow‑up phase
compared to the pre‑intervention phase.Also, dysmenorrhea severity exhibited a significant
and progressive reduction from pre‑intervention to post-intervention, with further
improvement maintained at follow-up phases (p < 0.001).Additionally, there was a highly
significant statistical negative correlation between total health-promoting lifestyle score
and total self-care strategies and total dysmenorrhea severity domains of the studied
students at pre- intervention, post -intervention and follow up phases. Conclusion:
Applying Nola Pender’s Health Promotion Model was associated with positive changes in improving knowledge, decreasing level of dysmenorrhea severity, and adopting healthy
lifestyle and satisfactory self-care strategies among the students. Recommendation: Nola
Pender’s Health Promotion Model should be integrated into routine nursing care for
adolescents to plan, implement, and evaluate effective actions that promote healthy
lifestyles and self-care strategies