Male fertility
Semen is mostly fluid from the seminal vesicles and prostate, with sperm making up a very small proportion of the volume. Because of this, semen volume tells you little about sperm numbers on its own — a semen analysis measures both, along with movement and shape.
Also known as: ejaculate, seminal fluid
Related Australia guides
Sources
- Healthy Male (healthymale.org.au)
- Healthdirect Australia (healthdirect.gov.au)
Last reviewed: 10 September 2026. Written by the Antega Editorial Team. General information only — always follow the advice of your own clinic, doctor or pharmacist.