Abstract: A lavage for obtaining a fluid specimen from a body cavity, has an elongated, flexible, narrow first tube insertable into a body cavity. A compressible bellows contains a saline solution communicating with the tube for ejecting the solution into the body cavity. A second tube surrounds the first tube and is insertable therewith into the body cavity to receive the solution expelled from the body. A third tube, attached to the first tube, communicates with the second tube to pass the expelled solution thereto. A removable cap on the third tube carries the second tube and serves as a stop member to limit insertion of the first and second tubes into the body cavity.