Introduction
Infertility is a major public health concern and it is said to
be the manifestation of one or more pathological conditions
of either male or female origin. As many as 15% of
couples have difficulty in conceiving, and the male factor is
implicated as the cause in up to 50% of such cases.
Moreover, in 10–15% of infertile couples, no apparent
cause can be found and these cases are categorized under