A semen analysis is a critical part of your fertility workup and the lack of one can result in a failed cycle (So you definitely should have one!!!); however, those clients wishing to decline this can do so by signing a waiver in your Consents Packet.  Remember, men are the cause of or partially responsible for approximately 50% of all cases of infertility.  A history of fathering children does not mean a man can not now be infertile. Male fertility declines due to age, environmental exposure, and other physiological changes. We, unfortunately, have many couples who failed to have a semen analysis done at a previous clinic or waive a semen analysis at ours, spend thousands of dollars and endure years of heartache, only to finally do a semen analysis and realize they have male infertility issues.