A semen analysis is usually one of the first tests done to help determine whether a man has a problem fathering a child (infertility).
Tests that may be done during a semen analysis include:
The first is sperm viscosity. Semen is a thick gel at the time of ejaculation and normally becomes liquid within 20 minutes after ejaculation. Liquefaction time is a measure of the time it takes for the semen to liquefy. Generally if sperm is not up to the combination of fertilization and egg can not, that is an important reason leading to male infertility.
