Objective:This study intends to preliminarily discuss the expression and the clinical meaning of serum YKL-40 in anaphylactic rhinitis by comparing the different expressions of serum YKL-40 in types of anaphylactic rhinitis,and to preliminarily discuss possible mechanism of having anaphylactic rhinitis involved with serum YKL-40 by associating it with serum IL-4and IFN-γin anaphylactic rhinitis.Method:Firstly,each select 20 people in our hospital who have anaphylactic rhinitis respectively according to diff...