Sexes

Most beings in the galaxy were one of two sexes, male or female. However, some species, such as the Hutts, could adapt the sexual characteristics of either gender, and were classified as hermaphrodites. Other variable species, like the X'Ting, changed gender periodically based on hormonal cycles. Some alien races had more than two sexes (the insectoid Xi'Dec had over 180 different sexes, presumably due to variations in compatible genitalia). Finally, some species, like the Filordi, were asexual and able to reproduce on their own. The Fnessian race had a previously undocumented gender called Thos. What exactly being a Thos meant is unknown.

Droids, especially those with complex personalities and those which worked in close partnerships with organic beings, such as protocol droids and astromech droids, were often programmed to have stereotypically masculine or feminine personalities. Thus, even mechanical beings were usually designated he or she.