Effect of Auricular Vagus Nerve Stimulation on Pain and Symptoms in Primary Dysmenorrhea

Primary dysmenorrhea is a common condition affecting young women and is associated withsignificant physical and psychological symptoms. Non‐invasive neuromodulation techniquessuch as transcutaneous auricular vagus nerve stimulation (taVNS) have gained attention aspotential therapeutic approaches.In this randomized controlled study, women diagnosed with primary dysmenorrhea will berandomly assigned to either an active taVNS group or a sham stimulation group. Theintervention will be applied during the luteal phase between two consecutive menstrualcycles, totaling 10 sessions.Outcome measures will include pain intensity, pain threshold, depression, anxiety,menstrual symptoms, premenstrual syndrome severity, and functional and emotional impactof dysmenorrhea.