叶天士是清代具有精湛医理和独创精神的著名医学家。他对久病(痛)入络的病机分析以及制定的辩治原则和用药方法,颇有独到见解。但须提出:叶氏所讲的络病却与《内经》有别。《内经》所说络病,表示邪气侵入部位轻浅,而经病则表示邪气侵入部位重深,其立论是指外感病的发病过程而言;叶氏所讲络病,表示邪气侵入部位重深,而经病乃表示病位轻浅,立论是指内伤久病而言。两者立论不同,故其内容各异。久病(痛)入络论是叶氏学术思想和医疗经验 Ye Tianshi is a famous medical scientist with excellent medical knowledge and original spirit in the Qing Dynasty. His insights into the pathogenesis of chronic illness (pain) and the formulation of principles of treatment and methods of treatment have quite unique insights. However, it must be pointed out that Yip’s syndrome is different from the “Neijing.” The Collaterals in Neijing indicate that the evil invaded the site is light and light, while the disease indicates that the evil invaded the site is deep and deep, and its argument is that the pathogenesis of the exogenous disease; Yip’s said collaterals, that the evil invasion site is heavy. Deep, but the illness is light, the argument is referring to long-term internal injuries. The two are different, so their contents are different. Chronic illness (pain) admittance theory is Yip’s academic thought and medical experience