THURSDAY, May 8 (HealthDay News) -- Semen from men who ejaculate more quickly by masturbation at a clinic is of higher quality than semen from men who take longer to ejaculate, according to a report in the May issue of Urology.
Saad Elzanaty, M.D., from Lund University in Malmo, Sweden, examined time to ejaculation (less than 10 minutes, 10 to 15 minutes, or more than 15 minutes) by masturbation at a clinic, and semen parameters in 142 men being assessed for infertility.
The researcher found that men who ejaculated in less than 10 minutes produced semen with a significantly higher sperm concentration, total sperm count, and total count of progressive motility than men who took more than 10 minutes. Semen from these men also had significantly higher fructose levels than semen from men who took more than 15 minutes to ejaculate. There was no significant association between time to ejaculation and semen volume, motility grades, neutral alpha-glucosidase, prostate-specific antigen and zinc.
"The time-to-ejaculation length was associated with semen parameters," Elzanaty concludes. "These results might reflect the negative effect of acute stress during semen collection via masturbation at a clinic on semen parameters."
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