Low hypoosmotic swelling test scores correlate better with lower percent motility than any other abnormal semen parameters.
OBJECTIVE
To determine if any single abnormal semen parameter is associated with low hypoosmotic swelling (HOS) test scores.


METHODS
A retrospective review evaluating males with single sperm defects of sperm concentration, % progressive motility, morphology using strict criteria, and antisperm antibodies. The percentage of these males with HOS test scores < 50% was then determined.


RESULTS
By far the abnormal semen parameter most associated with a subnormal HOS test was poor motility.


CONCLUSIONS
Though we believe that the simple inexpensive HOS test should be performed routinely when performing semen analysis, it is especially important to evaluate in males with poor motility since simple intrauterine insemination will not allow pregnancies.
The University of Medicine and Dentistry of New Jersey, Robert Wood Johnson Medical School at Camden Cooper Hospital/University Medical Center, Department of Obstetrics and Gynecology Division of Reproductive Endocrinology & Infertility, Camden, NJ, USA. laurie@ccivf.com
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D006801:Humans; D008297:Male; D009994:Osmolar Concentration; D012189:Retrospective Studies; D055101:Semen Analysis; D013081:Sperm Motility