A comprehensive semen analysis is often needed for a fertility evaluation and includes all components of the basic semen analysis, plus strict morphology, biochemical studies, and post-ejaculate urine evaluation.
Men can have a normal semen analysis yet still have impaired fertility due to the presence of antisperm antibodies directed to the head, midpiece, and/or sperm of the ejaculated sperm. These antisperm antibodies can reduce the movement of sperm as well as prevent fertilization of the egg.
The cost of this item includes both a comprehensive semen analysis and testing of antisperm antibodies attached to sperm.
Reference:The Immunology of Male Infertility, Gilbert, BR, Goldstein, M, and Witkin, SS. AUA Update Series, #8, February 1990