You don't have to be a jock to get jock itch. While it usually affects guys, girls can become infected by it too.
Certain factors can make jock itch more likely to develop such as excessive sweating while playing sports, hot and humid weather, friction from wearing tight or wet clothes for extended periods (like bathing suits), sharing towels with others.
Jock itch can be spread from other fungal infections such as athlete's foot which can be picked up from walking barefoot in a public shower floor, swimming pools or from using someone else's towel. It is possible to spread the fungus to your groin area from your towel or sharing towels.
You can catch jock itch by contaminated towels, clothing and bed linen. You can also transfer the infection by skin-to-skin contact with someone who is infected, and of course by touching an object that carries the fungus.
The area of the groin is a perfect environment for the growth of the fungus that causes jock itch as it's warm and moist. Wearing tight fitting clothing can often encourage the growth of fungi, making looser cotton underwear a better alternative.
While the vast majority of individuals who suffer from jock itch symptoms are male, females can also get this form of infection themselves.