Direct mixed antiglobulin reaction (MAR) test in semen at follow-up after testicular biopsy of maldescended testes operated in puberty.

In thirty patients bilateral orchiopexy was performed in puberty. At the operation twenty-five patients underwent bilateral testicular biopsies, and five patients underwent unilateral biopsies only. In adulthood the semen was analysed for antisperm antibodies by the direct mixed antiglobulin reaction (MAR) IgG test. In none of the cases a positive direct MAR IgG test was found.