Precision medicine requires careful observation for diagnosis.In addition to the accurate differentiation and diagnosis of diseases,which we have attached importance to,the meticulous observation of syndrome transformation should be taken seriously.In the course of the disease,the syndrome may improve or worsen.The transformation of syndromes is a turning point in the healing or worsening of the disease,and it is also one of the criteria for testing whether syndrome differentiation-based treatment is correct or not.In clinical practice,the factors affecting the transformation of syndromes are ...