Objective:To study the restorative effectofJianyun granule on ratm odelw ith the spleen-deficiency diarrhea.Methods:The rat m odels of the spleen-deficiency diarrhea w ere in- duced by senna folia infusion,and the restorative effectofJianyun granule on the injured intestinal m ucosa w as observed w ith scanning electron m icroscope(SEM) and transm ission electron m icro- scope(TEM).Results:The ultrastructure of the sm allintestinalm ucoas in rat m odels w as obvi- ously injured; m icrovillibecam e sparse and felloff;structure ofthe epithelialcells atope the villi w as variable;gap betw een cel...