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The impact of abstinence duration on semen volume, sperm count, and DNA fragmentation in the context of fertility and semen analysis.
A plurality of clinical studies of men seen for fertility evaluation report that men of Asian descent tend to have higher s and total sperm counts compared with White men, while men of n or Black desc...
depends on strict pre-collection instructions, standardized collection methods and containers, fast controlled transport to the laboratory, and with quality control; failure at any step biases total s...
Laboratories measure either by gravimetric (weighing the collection container before and after ejaculation and converting mass to volume) or by direct volumetric transfer into graduated cylinders or p...
A growing body of systematic reviews, meta-analyses and large observational studies shows that shorter ejaculatory abstinence—often defined as 24 hours or less—tends to lower sperm DNA fragmentation (...