An earring is a piece of jewelry attached to the ear via a piercing in the earlobe or another external part of the ear (except in the case of clip earrings, which clip onto the lobe). Earrings are worn by both sexes, although more common among women, and have been used by different civilizations in different times.
It depends on the common understanding of the society. In some
societies, both girls and boys wear earrings but if the society looks
at wearing earrings as an act specified for females, then males will
not be allowed to do any act of females or wear like females. Vice
versa, females are not allowed to wear any special dress of males.