[Learning the new by restudying the old: discussion on "consolidating tendons when tendons involved in disorders"]

In order to better understand and implement the treating principle of acupuncture as "consolidating tendons when tendons involved in disorders", the author explored the necessity of this principle in view of "the depth of disorder and depth of needle insertion" through explaining the meanings of it in the classic literature. In combination with the clinical experience, three recognitions were proposed. When treating tendon disorder, the correct recognition of disease is very important. The coordination of ashi points and the distal points enhances the therapeutic effects. Besides, the modern anatomic knowledge is assisted to the selection of acupoints. The study results enrich the connotation of this treating principle, explore the approach to the clinical treatment of the disorders of bones, joints and soft tissues and improve the therapeutic effects.