1. Objectives: This study examines the pathologies that originate from a Common Root Pathologic Category(CRPC; 同出一屬) in the Soyangin that are suggested in the Sasang Constitutional Medicine(SCM). 2. Methods: The changes in concepts and perceptions on the Soyangin pathologies were compared across the different editions of Donguisusebowon, "Donguisusebowon, Gabo edition(東醫壽世保元甲午本) (DGO)" and "Donguisusebowon, Sinchuk edition (東醫壽世保元辛丑本) (DSC)". 3. Results and Conclusions: The Soyangin pathologies originating from a CRPC that are described in Donguisusebowon are actually detailed classifications of the Yin-deficiency Diurnal-heat symptomatology (陰虛午熱證) and the Chest-congestion symptomatology (結胸證). Lee Jema had introduced the concept of "Common Root Pathologic Category(CRPC)" to approach pathologies of similar exterior/interior classification or severity stage (mild/moderate/severe/critical) by combining them in a comprehensive, integrative pathology system. This comprehensive approach, which promotes better understanding of the Soyangin pathology and maximizes the therapeutic efficiency of SCM, constitutes the "Comprehensive Therapeutic Methodology" that is the hallmark of Sasang therapy.