title: The effect of consecutive day inseminations on semen characteristics in an intrauterine insemination program.
abstract: This study demonstrates a statistically significant decrease in semen volume, sperm concentration, and sperm motility in samples obtained on the 2nd day of consecutive day inseminations in an IUI program. This diminution in semen characteristics persists despite sperm washing. The effects of a second ejaculation on semen parameters in oligospermic and asthenospermic men were mixed. Thus, in general, sperm-washing procedures cannot overcome the natural reduction in semen quality produced by frequent ejaculations. Clinicians may wish to use this information in timing IUI cycle inseminations.
authors.affiliation: Department of Obstetrics and Gynecology, Brigham and Women's Hospital, Boston, Massachusetts 02115.
authors.forename: M D
authors.initials: MD
authors.lastname: Hornstein
authors.forename: J N
authors.initials: JN
authors.lastname: Cohen
authors.forename: P P
authors.initials: PP
authors.lastname: Thomas
authors.forename: R E
authors.initials: RE
authors.lastname: Gleason
authors.forename: A J
authors.initials: AJ
authors.lastname: Friedman
authors.forename: G L
authors.initials: GL
authors.lastname: Mutter
mesh_terms: D004542:Ejaculation; D005260:Female; D006801:Humans; D007248:Infertility, Male / Q000628:therapy*; D007317:Insemination, Artificial, Homologous; D008297:Male; D009845:Oligospermia / Q000473:pathology / Q000503:physiopathology; D012661:Semen / Q000502:physiology*; D013076:Sperm Count; D013081:Sperm Motility; D013997:Time Factors