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Sperm Immobilizing Antibodies Interfere With Sperm Migration From the Uterine Cavity through the Fallopian Tubes

PROBLEM: It is well known that sperm migration in cervical mucus is impaired by sperm immobilizing antibodies secreted in the mucus. However, it is not clear yet whether sperm migration from the uterine cavity through the fallopian tubes to the peritoneal cavity is impaired by sperm immobilizing antibodies. To test the possible impairment of sperm migration in the tubes, laparoscopic examinations were carried out and the presence of motile sperm in the peritoneal fluid after intra‐uterine insemination was investigated.