THE CHANGES OF COMPLEMENT C3, IMMUNOGLOBULINS AND HISTAMINE CONCENTRATIONS IN THE MENSTRUAL BLOOD OF IUD USERS WITH ABNORMAL UTERINE BLEEDING

Abnormal uterine bleeding aRer insertion of IUD was caused by various factors. In order to explore the mechanism of bleeding, the changcs of complement C3, IgG, IgA, IgM and histamine concentration in the menstrual blood of IUD users were analyzed.