In

The Inner Canon of Yellow Emperor

（《黄帝内经》），the palpation of forearm skin usually refers to disease diagnosis by pulse diagnosis and observation of the forearm skin between the wrist and the elbow， in which "syndrome differentiation by palpation of forearm skin" is an important part of forearm diagnosis. However， with the popularity of palpation of the radial pulse， later generations of doctors may mismark the "forearm" of

The Inner Canon of Yellow Emperor

as the "chi part" of the radial pulse palpation. In addition， generations of doctors have relied on the

Plain Questions·Treatise of the Essential Subtleties of the Pulse

（《素问·脉要精微论篇》） to interpret the meaning of "syndrome differentiation by palpation of forearm skin"， but still with doubts and unclear explanation， so that "syndrome differentia

tion by palpation of forearm skin" has not been well used in clinic for a long time and has been lost. Based on the text of "syndrome differentiation by palpation of forearm skin" in

Grand Simplicity·Five Viscera Pulse Diagnosis

（《太素·五脏脉诊》）， this paper provided a new and more clinical interpretation by combining bibliographic， historical， and theoretical research methods. "Syndrome differentiation by palpation of forearm skin" is a holographic correlation between arm， elbow and torso based on the diagnosis rules of fever and insect disease in

Miraculous Pivot·Understanding Sickness by Examination of the Cubit Skin

（《灵枢·论疾诊尺》）. The core of the correlation is "forearm-abdomen"， which can be further verified in the two disease cases by palpation of forearm skin， "Pinworm-induced conglomerations （蛲瘕）" and "Hujin （狐筋， also as 疹筋）"， when the

Inner Canon of Yellow Emperor

was written. Through the explanation of "syndrome differentiation by palpation of forearm skin"， we can broaden the thinking for the modern clinical application of palpation of forearm skin.