Cervical plasma cell population in infertile patients.

Cervical biopsy specimens were obtained from 50 controls and 50 women attending an infertility clinic. Sections were cut and stained, by a direct immunofluorescent technique, with fluorescein-labelled sheep antihuman IgA, antihuman IgM, and antihuman IgG in an attempt to show a difference between the two groups. A significant increase in the number of plasma cells containing IgA was found in many of those infertile women in whom no other abnormality could be detected.