What is semen analysis?

Semen analysis, also known as a sperm count test, analyzes the health and viability of a man's sperm. A semen analysis measures three major factors of sperm health:

  • The number of sperm
  • The shape of the sperm
  • The movement of the sperm

Why is sperm analysis done?

A semen analysis is used to determine whether a man might be infertile—unable to get a woman pregnant. The test may be used to help determine the cause of a couple's inability to get pregnant and to help guide decisions about infertility treatment.

Preparation for the test

You will need to avoid sexual activity, including masturbation, for 2–5 days before the sample is collected.