Once sperm is released, it takes about 2 to 4 days for it to become full again, so abstinence increases semen volume. However, abstinence for more than 7 days may actually reduce the quality of sperm. Recommended range of abstinence period set by WHO: ``2-7 days'' When it comes to semen analysis, the World Health Organization (WHO) recommends ``abstinence for 2-7 days''. Within this period, the amount and concentration of semen.
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