There are additional tests which may provide more information
about male infertility. These tests include semen culture to check for
infection, biochemical analysis of the semen to measure certain chemicals
in the semen such as fructose, and vital staining to determine the number
of live and dead sperm. The peroxidase staining test is used to differentiate
immature sperm form white blood cells.
Measuring Nitric oxide (NO) in the seminal fluid (High
level of NO is associated with sperm DNA damage and the integrity of sperm
DNA is an important factor in embryo development).
