International Journal of Medical Research & Health Sciences (IJMRHS)
ISSN: 2319-5886 Indexed in: ESCI (Thomson Reuters)


Impact of Coagulase-Negative Staphylococci and Other Germs on Sperm Forms

Author(s):Ricardo Lozano-Hernández, Velasco Judith and Rodríguez Maythe

Coagulase-negative Staphylococci (CoNS) is part of the microbiota of the male genitourinary tract, sometimes it has been considered as possible pathogenic microorganism. In the 5th version of sperm manual (WHO, 2010) sperm morphology criterion is very restricted to 4% of normal heads whereas David’s criterion evaluates several spermatic forms. The abnormalities of sperm forms were evaluated according to criteria of spermatic morphology: WHO and David in semen samples with bacterial concentrations ≤ 103, 104 and ≥ 105 CFU/mL of CoNS as of other bacteria. Spermogram, sperm culture and antibodies anti-Chlamydia trachomatis IgA detection in 281 semen samples men were performed. CoNS was the most frequent germ isolated in pure culture (9.25%). Semen samples with CoNS showed higher round cells and microcephalus forms by means of David’s criterion. CoNS in higher concentrations than 104 CFU/mL may have a negative impact on sperm cellularity, sperm head and probably on fertility.

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