Related Experiment Video
Updated: May 24, 2026

The Examination of Peroxidase-Positive Leukocytes in Semen
Published on: January 19, 2024
[Bacteriospermia in Assisted Reproductive Techniques: effects of bacteria on spermatozoa and seminal plasma,
F Boitrelle1, G Robin, C Lefebvre
1Laboratoire de spermiologie, biologie de la reproduction, cytogénétique, CHI de Poissy-Saint-Germain-en-Laye, rue du Champ-Gaillard, 78303 Poissy, France. florenceboitrelle@yahoo.fr
Abstract:
The presence of bacteria in semen could induce impairment of sperm morphology, alteration of sperm function and mechanical or functional obstruction of the seminal tract. The term of bacteriospermia does not signify infection. Bacteriospermia and male accessory gland infection (MAGI) have indeed to be distinguished. They may lead both to male infertility but their diagnosis and treatment options differ. This review summarizes effects of bacteria and leucocytospermia on sperm parameters and functions. Then, indications, benefits and risks of treatment of bacteriospermia and MAGI, in assisted reproductive techniques (ART) will be discussed. For bacteria commonly observed in semen, this review aims at defining some thresholds above which a treatment is required. These thresholds were established according to literature, according to French microbiology society and in function of our usual practice. This review should help practitioners of reproductive medicine to take care of bacteriospermia in semen.
Related Concept Videos
Spermatogenesis
Infertility in Males
Microbiota of the Urogenital Tract
