试探法是中医在临证过程中,对于尚未确诊的病证,提出有根据的假设,进行试探性治疗,并通过观察病人对相应汤方的反应,进一步确定病证性质、程度的一种试探性诊断方法。张仲景在《伤寒论》中首用试探法,根据服用小承气汤后腹中有无矢气的转动来辨别燥屎的有无,决定是否用承气汤攻下。本文拟谈谈小承气汤试探法的临床意义及运用中应注意的问题。 The heuristic method is a tentative test for the nature and extent of the disease syndrome. Diagnostic method. Zhang Zhongjing used the method of temptation in the “Treatise on Febrile Diseases” first, and determined whether or not dryness was found on the basis of taking Xiao Chen Qi Tang’s rotation in the abdomen and whether or not to use Cheng Qi Tang. This article intends to discuss the clinical significance of the trial method of Xiao Cheng Qi Tang and the problems that should be paid attention to in the application.