The syringe (1) has a base body (2) which consists of a syringe cylinder (3) whose spraying side end is connected with a hollow needle (6). A piston (10) connected with a piston rod (11) is movably arranged in the syringe cylinder. A protective module is provided which has a protective cap (7) adjustably mounted at the base body. The protective cap receives the hollow needle in its end position such that the hollow needle does not protrude from the protective cap with its front end. A retaining element is provided which is brought from a retaining position to another retaining position.
