To provide a container with a fluid discharger for preventing a screw cap pressing a cylinder from rotating together with the cylinder and removing from an attachment provided on a container body by fixing the cylinder constituting the fluid discharger without allowing it to relatively rotate with respect to the attachment provided on the container body.

A container body 200 includes a one-push pump 100 for sliding a piston 120 in a cylinder 130 according to a pressing operation to a nozzle head 110 to fill a fluid between the piston 120 and the cylinder 130 and discharging it from the nozzle head 110 via a passage 120r extending through the piston 120. The cylinder 130 has a flange 133 interposed with an O-ring 190 between an opening 320 provided on a case 300 to be attached to a mouth 210 of the container body 200 and a screw cap 180 screwed over the opening 320. The flange 133 includes a sidewall 134 covering an outer periphery 320f of the opening 320, and includes a fixing means X between an inner periphery 134f of the sidewall 134 and the outer periphery 320f of the opening 320.