To provide a syringe having a stop device.

The syringe comprises a cylinder 2, a plunger 4, three check units 5, a check unit 6, and a check unit 7. The cylinder 2 includes a cylinder body 21, a proximal section 22 of the syringe connected to the cylinder body 21, a flange 23, a flange 24, and a flange 25. The plunger 4 includes a pusher end 41, a plunger body 42 located near the pusher end 41, a locking section 43 extending from the pusher end 41 in the opposite side of the plunger body 42, and an apical end 44 extending from the pusher end 41 in the opposite side of the locking section 43. The check unit 5, the check unit 6, and the check unit 7 are formed in order of separating from the pusher end 41 of the plunger 4.