While male and female infertility is relatively common in approximately 15% of the population, many molecular and genetic factors that cause infertility are not known. Even so, genetic factors that are associated with causing infertility are being identified, one of them being chromosomal disorders such as chromosomal aneuploidy. Chromosomal aneuploidy is a mutation in which the chromosome number is abnormal as a result of chromosomes failing to separate normally, or nondisjunction and is the leading cause of pregnancy loss and disabilities that impair development. Little is currently known as to what genes or how aneuploidy can cause male infertility, but because the number of chromosomes is different, some genes may be lost or you could have