The Sasang Constitutional Medicine, written in the Donguisusebowon(1894) is a unique medicine of Korea and a precious cultural heritage that was created by Dongmu Yi Jema.
Sasang medicine is a personalized medicine which categorizes human beings into four constitutional types: Taeyangin, Taeumin, Soyangin, and Soeumin. Each type has its typical function in the internal organ system. Sasang medicine is a personalized and precision medicine that accounts for type-specific physiology, pathology, treatment, and prevention.

① Sasang Constitutional Medicine started from a four-fold structural ontology. : The ontological structure of Sasang is differentiated as follows: 'Taiji(太極) - Two complementary forces(兩儀) - Sasang(四象)'. It has the structure of 'Mind(心) - Mind(心)/Body(身) - Activity(事)/Mind(心)/Body(身)/Matter(物).’
② The pathology of Sasang Constitutional Medicine is centered around humanism based on Confucianism.
③ Sasang Constitutional Medicine is a therapeutic medicine that focuses on the balance between mind and body. : The ethos of treating both mind and body embodies the fundamental spirit of 'treating the Heart, treating the illness(治心治病)' based on idea of 'understanding others and rectifying oneself(知人正己).’
④ Sasang Constitutional Medicine is a 'Form-Pattern Medicine' based on the 'Form and Heart.'
⑤ Sasang Constitutional Medicine established the therapeutic principle of constitutional medicine patterns(體質病證藥理) centered on righteous energy(正氣: the requisite energy 保命之主). In Sasang Constitutional Medicine, the disease patterns(病證) are divided into favorable patterns(順證) and unfavorable patterns(逆證) based on the righteous energy(正氣: the requisite energy 保命之主). The main focus of treatment is to control the raising-lowering-loosening-tightening(升降緩束) of the righteous energy(正氣).
⑥ Sasang Constitutional Medicine is both a cultivating medicine and preventative medicine which seeks health in daily life through constitutional management. Diagnosis of the Sasang constitution is made by comprehensively judging the person's external characteristics, mental characteristics, usual pattern (symptoms that manifest ordinarily), disease pattern (symptoms that manifest during illness), and response to constitutional treatment. Recently, objective tests for constitutional differential diagnosis have been introduced, and the diagnostic questionnaires for Sasang Constitutions and three-dimensional face and body shape analysis system, etc. are being used as data for Sasang constitutional differential diagnosis.

In clinic, the department approaches various diseases such as brain and nervous system diseases including stroke, obesity, metabolic syndrome, allergies, pediatric cancer, and general cancer through the Sasang constitution theory. At the East-West General Health Examination Center, we take a preventive medical approach through management of lifestyle conditions that precede diseases. Outside of the clinic, we participate in academic activities through groups such as the Society of Korean Medicine, the Society of Sasang Constitution Medicine(http://www.esasang.or.kr).