Objective: To observe the clinical efficacy of electroacupuncture treatment for primary dysmenorrhea. Methods: In total 75 patients with primary dysmenorrhea were randomized into electroacupuncture with point injection group (37 patients), and electroacupuncture group (38 patients). Cox Menstrual Symptom Scale (CMSS) and Visual Analogue Scale (VAS) were observed before and after three treatment interventions, and the clinical efficacies were compared. Results: The total effective rates were 91.9% and 86.8%, and th…