[The related study of first pregnancy women with Cu-IUD on copper content of blood serum and decidua, chorion tissues].

Objective: Through determine the copper content of decidua, chorion and blood serum of first pregnancy women with Cu-IUD, we offer date for security of offspring.

Methods: March 2010 to December 2010, in family planning clinics of the general hospital of Tianjin medical university, we selected twenty-five first pregnancy women with Cu-IUD who intended to terminate pregnancy to be experimental group and twenty-five normal first pregnancy women who intended to terminate pregnancy to be control group, and determined the copper content of decidua, chorion and blood serum in experimental group and control group.

Results: The copper content of decidua, chorion and blood serum in experimental group is (0.