Cancer pain of bone metastases is an intractable pain caused by malignant tumors transferred to bone.At present,there was a lack of a unified,objective,standardized syndrome differentiation in traditional Chinese medicine(TCM).There are diverse syndromes in clinical practice,and the treatment also has great difference.The Syndrome Element Differentiation Theory was founded by Professor ZHU Wenfeng on the basis of traditional syndrome differentiation and treatment.It has advantages of objective,accurate and standardized.This paper conducted a preliminary discussion on the TCM syndrome different...