Intercourse that occurs without lubrication of any kind. “Dry sex” typically refers to vaginal intercourse, but the term can refer to any sex act.

Lubrication protects sensitive skin from friction, and dry sex can be painful and potentially dangerous. Dry sex is associated with increased risks of many different types of sexually transmitted infections.

Additionally, the act of removing vaginal lubrication alters the vaginal flora, increasing the risks of some health issues including bacterial vaginitis.