Glossary

Sperm Count

The number of sperm in an ejaculate. Also called sperm concentration and given as the number of sperm per milliliter.

Sperm motility

The ability of sperm to swim. Poor motility means the sperm have a difficult time swimming toward the egg.

Split-Ejaculate

Seminal fluid with an enhanced concentration of sperm created by splitting an ejaculated semen sample (the first half of the ejaculate contains most of the sperm).

Sterility

An irreversible condition that prevents conception.

Superovulation

The production of multiple eggs during a single menstrual cycle stimulated by fertility drugs.

Teratospermia

Condition characterized by the presence of malformed spermatozoa in semen.

Testicles

The male gonad (there are two testicles in the male genital tract) that produces sperm and hormones.

Testosterone

The male hormone responsible for the formation of secondary sex characteristics and for supporting the sex drive. Testosterone is also necessary for spermatogenesis (sperm development).

TFNA (Testicular Fine Needle Aspiration)

Minimally invasive technique to recover sperm where the testis are punctured for sperm aspiration.

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