A specific period of abstinence is recommended for semen analysis in order to ensure that the sample collected is representative of the man's typical sperm count and quality. This period of abstinence is typically between 2 and 7 days, with 3-5 days being the most commonly recommended period.
The reason for this specific period of abstinence is that it allows for the buildup of a sufficient volume of semen and concentration of sperm in the ejaculate, which can provide a more accurate assessment of fertility potential. If the period of abstinence is too short, the semen volume and sperm count may be lower than usual, while if the period of abstinence is too long, the sperm may become less motile and have reduced quality.
Therefore, the recommended period of abstinence for semen analysis is typically based on the time required for the body to produce a sufficient volume of semen with optimal sperm count and quality. This can vary from person to person, but a period of 3-5 days is generally considered to be sufficient for most men.