Sperm (pl.: sperm or sperms) is the male reproductive cell, or gamete, in anisogamous forms of sexual reproduction (forms in which there is a larger, female reproductive cell and a smaller, male one).

Jul 23, 2024 · Sperm Sperm are male sex cells with three main parts: a head, midpiece and tail. Males start to produce sperm around puberty. Your body releases tens of millions of sperm when you …

Oct 19, 2025 · What Is Sperm? Sperm are male sex cells. You might also hear them referred to as reproductive cells, or gametes. They fertilize female sex cells, called eggs or ova, which results in …

Mar 4, 2020 · Sperm are male reproductive cells that are one-half responsible for creating life. Read on to discover some facts about sperm and male fertility.

Dec 16, 2025 · Discover how sperm cells develop, their intricate anatomy, crucial roles in reproduction, and common diseases affecting male fertility. Visual guides included.

Jun 13, 2018 · When a man is stimulated for sexual activity, the sperm are mixed with seminal fluid — a whitish liquid produced by the seminal vesicles and the prostate gland — to form semen.

Dec 16, 2025 · Under ideal conditions, sperm lives for days after ejaculation from intercourse. This article examines sperm motility and how it affects sperm lifespan.

Jul 19, 2025 · Sperm are the male reproductive cells, each carrying half of the genetic information required to create an offspring. Their purpose is to travel to and fuse with a female egg cell, a …

Jun 14, 2025 · There are huge gaps in what we know about sperm, from how they navigate to why sperm counts are tumbling. The BBC unravels why we know so little about this perplexing cell.

Learn all you need to know about sperm, including what it is, how fertilization works, and how sperm motility affects male fertility in our Guide to Sperm.