Abstract: A device (1) for positioning within a human female vagina (V) to collect fluid discharged from the uterus (U), and also an instrument to facilitate positioning. The device (1) includes a receptacle (2) having a body (3) providing a collection chamber (4) for the fluid, and a rim (5) defining an inlet opening (6) into the chamber (4). The receptacle (2) is positioned within the vagina (V) so that the rim (5) surrounds the cervix (C) and the collection chamber (4) extends downstream so that fluid discharged from the uterus through the cervix (C) flows through the rim inlet opening (6) and is collected in the collection chamber (4). A trap valve (13) within the receptacle (2) permits the fluid to flow into the collection chamber (4) but inhibits return flow out of the receptacle (2).