The main purpose of the study is to assess to which degree a series of sperm parameters known to be associated with fertilization and implantation potential in artificial reproductive technology (ART) differ in consecutive sperm samples produced after 2-7 days and 2 hours of sexual abstinence in males from couples referring for ART treatment.
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AI-rewrites the medical criteria so a patient or caregiver can understand them. Always confirm with the trial site.
Routine semen quality assessment
Timeframe: After liquefaction (30-35 minutes after ejaculation)