Male fertility
Vitality testing distinguishes sperm that are alive but not moving from sperm that are dead. It is done when motility is very low, because live immotile sperm can still be used for ICSI, whereas a truly dead sample points to a different problem.
Also known as: necrozoospermia, live sperm test
Sources
- WHO laboratory manual for the examination and processing of human semen (who.int)
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.