[Infections of the ejaculate by sexually transmissible pathogens]
Related Experiment Video
Updated: Nov 9, 2026

Ex Vivo Infection of Human Lymphoid Tissue and Female Genital Mucosa with Human Immunodeficiency Virus 1 and Histoculture
Published on: October 12, 2018
1Andrologische Sprechstunde der Klinik und Poliklinik für Urologie Georg-August-Universität Göttingen.
Abstract:
Certain ejaculate infections can be traced back to sexually transmitted microorganisms, such as Neisseria gonorrhoeae, Chlamydia trachomatis, Ureaplasma urealyticum and Trichomonas vaginalis. To varying extents, these microorganisms cause such classical genital infections as urethritis, epididymitis and prostatitis as well as subclinical genital tract infections. Several different pathomechanisms are under discussion for infection of the ejaculate: reduction of spermatogenesis resulting from testicular damage, autoimmune processes induced by inflammation, direct influence on the spermatozoal function, disturbances in spermatozoal transport, secretory dysfunction of the male accessory sex glands and leukocytospermia with secondary influence on ejaculate parameters. The relevance of these microorganisms for the localization of the inflammatory process within the genital tract are discussed in detail. Their importance for male fertility is a matter of debate. In particular, the significance of C. trachomatis and U. urealyticum, both of which are detectable in the urethra, is still uncertain and cannot be assessed conclusively. Further information allowing delimitation of an infection resulting from bacterial colonization may be provided, on the one hand, by biochemical markers for an inflammatory reaction and indicators of an immune response in the ejaculate, e.g. PMN elastase, complement C3, or coeruloplasmin, and on the other hand, by secretion markers such as alpha-glucosidase, PSA and phosphatase. Whether the assessment of these markers and indicators can help to clarify the inflammatory origin of infertility in individual cases remains doubtful.
Insights
Sexually transmitted microorganisms can infect ejaculate, potentially impacting male fertility through various mechanisms. The exact role of certain bacteria like Chlamydia trachomatis and Ureaplasma urealyticum remains uncertain.
Area of Science:
- Reproductive Medicine
- Infectious Diseases
- Urology
Background:
- Sexually transmitted microorganisms (Neisseria gonorrhoeae, Chlamydia trachomatis, Ureaplasma urealyticum, Trichomonas vaginalis) are linked to ejaculate infections.
- These infections can cause classical genital conditions (urethritis, epididymitis, prostatitis) and subclinical genital tract infections.
Purpose of the Study:
- To explore pathomechanisms of ejaculate infection by microorganisms.
- To discuss the relevance of these microorganisms for genital tract inflammation and male fertility.
- To evaluate the utility of biochemical and secretion markers in diagnosing inflammatory origins of infertility.
Main Methods:
- Review of pathomechanisms including testicular damage, autoimmune processes, direct effects on sperm, transport disturbances, accessory sex gland dysfunction, and leukocytospermia.
- Discussion of inflammatory localization within the genital tract.
- Analysis of biochemical markers (PMN elastase, complement C3, coeruloplasmin) and secretion markers (alpha-glucosidase, PSA, phosphatase).
Main Results:
- Several pathomechanisms for ejaculate infection are proposed, affecting spermatogenesis, sperm function, and transport.
- The specific contribution of Chlamydia trachomatis and Ureaplasma urealyticum to male infertility is still debated.
- Biochemical and secretion markers may offer insights but their definitive role in clarifying inflammatory infertility is uncertain.
Conclusions:
- Microorganisms can infect ejaculate through diverse mechanisms, potentially impacting male reproductive health.
- The etiological significance of certain common genital microorganisms for male fertility requires further investigation.
- Current biochemical and secretion markers have limitations in definitively diagnosing inflammatory infertility.
Related Concept Videos
Infection
The chain begins with pathogens: bacteria, viruses, fungi, prions, or parasites such as protozoa helminths. These can be present on the skin as transient or resident flora, or they can be acquired from the environment. Identifying and treating the type of infection and...
Sexually Transmitted Infections
Transmission of Pathogens
Genital Herpes
Amebiasis
Trichomoniasis

