A lancing unit (U) includes a support member (1) provided with engagement means (19A) which is inserted into a housing (4) of a lancing apparatus (A) for engagement with an engagement surface (24a) of a lancing member (2) when the lancing member (2) is mounted to a movable member (5) of the lancing apparatus. The removal of the lancing member (2) from the movable member (5) after the lancing member (2) is mounted to the movable member (5) can be easily and reliably performed by inserting the engagement means (19A) into the housing (4) and then pulling the engagement means out of the housing (4).
