A prefilled syringe is configured so that, in order that a liquid medicine injected and administered into the upper layer part of skin is prevented from leaking out of the living body, a pressing section can be held in a position reached when it has been completely pressed in. A prefilled syringe 1 is provided with: a double-ended needle 3 having a needlepoint 9 which can be inserted into a living body a needle hub 4 for holding the double-ended needle 3 an outer tube 2 a pressing section 22 a liquid medicine storage section 6 for storing a liquid medicine M a holding section 8 and a sealing body 23. The liquid medicine storage section 6 is disposed within a tube hole 2a of the outer tube 2. The pressing section 22 operates the liquid medicine storage section 6 so that the liquid medicine storage section 6 can move in the axial direction of the tube hole 2a of the outer tube 2. In a pressed state in which the liquid medicine storage section 6 and the pressing section 22 have been moved toward the needle hub 4 side until the liquid medicine M stored within the liquid medicine storage section 6 has been discharged, the holding section 8 holds the pressed state of the pressing section 22.
