In order to explore the mechanism of common furs from these aspects of cytochemistry, cyclic nucleotide, trace element, autonomic nerve,suprarenal cortex function and red - cell immune. We have determined the 16 mdixes such as the contents of LDH.MDH.G - 6 -PDH,ANAE,ACP,-SH and RNA in the epithelial cells of common furs. salivary Zn, Fe and cortisal.the cyclic nuclotide of plasma,the balancing index of autonomic nervous system and so on including 91patients and 26 normal cases .moreover .we hare also finished the analysis of mu...