Objectives: The purpose of this study is to find out the health condition and the etiology in oriental medicine of the high school girls menstrual disorders by Sasang constitution. Methods: The data from the 795 participants were collected using a structured menstrual history questionnaire. Based on the survey responses, we had 97 adolescents with menstrual disorder as the test group and 97 adolescents without menstrual disorder as the control group. The clinical trials subjects were asked to respond to another questionnaire for identifying their constitutional types and respond to the DSOM and undergo Inbody. We identified significant variables for dysmenorrhea from comparison between the test and control group. Results: The DSOM test showed that the scores of qi stagnation, static blood, cold, dampness, phlegm, heart, kidney were significantly higher in dysmenorrhea, scant menstruation, menstruation at irregular intervals. For the Sasang constitution, there is a difference on the cause of the outbreak. Soyangin from yin deficiency, dryness and blood deficiency is associated with menstrual disorders. Taeumin from cold, dampness and qi deficiency is associated with menstrual disorders. Soeumin from heart, qi stagnation, static blood and spleen is associated with menstrual disorders. Conclusions: For the Sasang constitution, there is a difference on the cause of the outbreak. The result of a comparison of the test and control groups showed that there`s no relevance to the body fat mass and body fat percentage with menstrual irregularities.