Three Causes and One Disease Syndrome Prescription

"Three Causes and One Disease Syndrome" was written by Chen Yan in the Southern Song Dynasty and was published in the first year of Chunxi (1174). The original name was "Three Causes and One Pathogen", which was shortened to "Three Causes Prescription". The book has 18 volumes, divided into 180 categories, and contains more than 1,050 poems. The book first discusses pulse diagnosis, medical practice procedures and the three causes of disease, and then lists the prescriptions and medicinal treatments for various clinical diseases and syndromes based on the three causes. Chen's "Three Causes Theory" classified the causes of disease into three categories, attributing the six exogenous diseases to external causes, the seven emotions to internal causes, and all the diseases that could not be classified as internal or external causes were attributed to non-external causes. This made the etiology theory more systematic and became the standard for discussing the causes of diseases in later generations. The whole book is carefully discussed and contains many insights and inventions. The prescriptions listed are selected by the author and are not comparable to the ordinary collection of prescriptions. Therefore, this book has a high reference value in both theoretical research and clinical application.