Objectives: The purpose of this study is to report the effects of herbal medicine and acupuncture on ovarian hyperstimulation syndrome (OHSS). Methods: A patient who had OHSS with edema and pain of left leg as chief complaints was treated by herbal medicne and acupuncture for 11days. We evaluated the results of treatment by change of symptoms, circumference of left leg, Visual Analogue Scale about left leg pain and walking time. Results: After treatment, symptoms of OHSS were almost improved. Circumference and pain of left leg were reduced and walking time was incresed after treatment. Conclusions: This study suggests that Korean medicine mainly herbal medicine and acupuncture is effective on OHSS.