Objective : The purpose of this paper is to report the effect of Danggwihweyeo㎏aohsuyu-

saenggang-tang(DHGOST) on primary dysmenorrhea from the disease pattern identification diagnostic system based on Shanghanlun provisions.

Methods : According to a disease pattern identification diagnostic system based on Shanghanlun provisions, the patient was diagnosed with 'Reverting Yin Disease'. She took DHGOST for 75 days. This paper evaluated the results of treatment by Measure of Menstrual Pain(MMP) and Menstrual Symptom Severity List(MMSL)

Results : The MMP score was declined from 8.3 to 3.5. And the MMSL score was declined from 46 to 38.

Conclusions : This case study suggests that DHGOST has effectiveness on primary dysmen-

orrhea who is diagnosed with 'Reverting Yin Disease'.

KeyWords : Shanghanlun, DHGOST, primary dysmenorrhea, six differential diagnostic system