Semen analysis, also known as a sperm count test, analyzes the health and viability of a man’s sperm. Semen is the fluid containing sperm (plus other sugar and protein substances) that’s released during male ejaculation. A semen analysis measures three major factors of sperm health:
- the number of sperm
- the shape of the sperm
- the movement of the sperm, also known as “sperm motility”
Two or three separate sperm analysis are conducted to get an idea of sperm’s health. According to the American Association for Clinical Chemistry (AACC), the tests should be conducted at least seven days apart and over the course of two to three months. Sperm counts can vary on a daily basis. Taking an average of the sperm samples can give the most conclusive result.