When you are asked to do a semen analysis, the couple should take the following precautions. First and foremost, there should be a gap of 2 days minimum and the gap should not exceed 5 days. The reason for that is if the gap is too low, the volume can come less and the analysis report may be abnormal. If the gap is too long, the volume will come higher and the quality of abnormal sperms might be higher. So while giving a semen sample for analysis, it’s always important that they follow abstinence for two days and that period should not be more than 5 days.