Qi Shi's courtesy name, native place, and dates of birth and death are not clearly recorded, and available public information is very limited; he is known only as a physician of ancient times who left one medical work, Li Xu Yuan Jian (Profound Insights into the Treatment of Consumptive Diseases). The book is devoted to consumptive and deficiency disorders, discussing their causes, key points of pattern identification, and methods of regulation and treatment, with additional attention to prevention and nursing care. It is an important text in the study of consumptive diseases in traditional Chinese medicine. Qi Shi's writing emphasizes the integration of theoretical analysis with clinical practicality; his discussion is clearly organized and offers detailed observations on the causes and mechanisms of consumption and on the proper use of medicines, and his views have often been cited by later physicians. Because historical sources are lacking, his life cannot be examined in detail, yet Li Xu Yuan Jian shows a rigorous and practical medical approach. The work is concise but focused, and it remains an important reference for the study and clinical treatment of consumptive diseases, exerting a lasting influence on traditional Chinese medical literature and clinical research.
