Insensitivity of the skin

Numbness of the skin. Essential Prescriptions of the Golden Cabinet (金匮要略 jīn guì yào lüè, zhòng fēng lì jié bìng mài zhèng bìng zhì) states, When evil is in the network vessels, there is insensitivity of the skin. See numbness and tingling of the skin.

Etymology

Chin 肌肤 jī fū, skin, flesh; 不仁 bù rén, not human, callous, insensitive.