Dysmenorrhea is one of the most common gynecologic disorders in menstruating women. Dysmenorrhea refers to the pain appearing in the lower abdomen and lower back before. after or during menstruation. In oriental medicine. the causes of dysmenorrhea have been recognized as something penetrated such as qi. blood. and pathologic factors. The purpose of this study was to observe the difference in the temperature between the Soyangin dysmenorrhea patients group and the Soeumin dysmenorrhea patients group by thermography. We observed the 55 dysmenorrhea patients that visited ** Oriental Medicine center from July 19 to August 27. 2004. We diagnosed the constitution by QSCCII and the body temperature was assessed by DITI. Thermographic measurements were performed on 3 areas(Chon-jung(CV17), Chung-wan (CV12), Kwan-won(CV4)). In this study we observed that the temperature of Chon-jung(CV17) is the highest and Chung-wan (CV12) is higher than Kwan-won(CV4). The temperature of Soeumin group is higher than that of Soyangin group in all areas and there is a significant difference in 3 area temperature between Soeumin group and Soyangin group.