The purpose of our study is to create the evidence of effect on dysmenorrhea by acupuncture. The study will be performed under randomized, open, controlled design. The effect of acupuncture and control group will be compared including the following outcomes: pain score (Visual Analogue Scale), quality of life (SF-36, Taiwan version), overall improvement in dysmenorrhea, adverse effects from treatment, requirements for additional medication, restriction of daily life activities, absence from work or school.