Skip to main content
Research

Mature Sperm

by
Last updated: Apr 26th, 2025
Mature Sperm
Click to View Larger Image

Mature sperm means sperm that are able to swim independently. When the immature sperm cells move from the ducts of the testis into the epididymis, they are completely immobile and unable to fertilize an egg cell. As they travel slowly through the epididymis as a result of rhythmic contractions, they undergo maturation and become capable of moving independently so that they may engage in swimming motions after ejaculation.