Introduction: Dysmenorrhea can occur before, during, or after menstruation. Menstrual pain can last for one to several days during menstruation. The pain is colic or persistent and is thought to be due to the contraction of the uterine muscles to expel endometrial tissue. Some predisposing factors play a role in the pathophysiology of primary dysmenorrhea have not been explained to date, it is suspected that prostaglanding factors are the main cause of the pain felt. Treatment of menstrual pain can be done in 2 ways, namely pharmacological and non-pharmacological approaches. A non-pharmacological treatment that can give good results is the use of lavender aromatherapy because the content of essential substances in it is suspected to reduce anxiety and pain sensations so as to reduce the intensity of dysmenorrhea.

Method: This study is a true experimental research with a double blind randomized pre and post test control design. This research was conducted in Susut Village, Bangli from January 2024 to March 2024. This study used a consecutive sampling technique followed by the grouping of treatment subjects who received the aroma of lavender therapy and the control subjects received a placebo for 15 minutes for 2 consecutive days. Pain intensity was measured using the NRS scale before and after the intervention.

Results: This study involved 60 subjects consisting of 30 cases and 30 controls. The administration of lavender aroma therapy significantly reduced the intensity of dysmenorrhea pain compared to placebo.

Conclusion: The administration of lavender aromatherapy lowers the intensity of dysmenorrhea pain.

Keywords: dysmenorrhea, adolescent, lavender aromatherapy, pain intensity, NRS.

Made Tangkas, is a lecturer at the Faculty of Medicine, Mahasaraswati University. In addition, she is an obstetrics and gynecology specialist who has been actively serving and treating patients in her field for more than 20 years. Currently, he is actively conducting research in the field of obstetrics and gynecology, and has written several reference books in his field.