The device has a piercing element (14) for pricking skin of a body part (17) e.g. finger tip. The element comprises a receiving structure (18) for body fluid obtained with a skin puncture. A piercing drive (12) is provided for forward and rear extraction movements of the element, where duration of the rear extraction movement is longer than duration of the forward extraction movement. The drive is designed to move the element in a rear extraction phase of the rear extraction movement with a maximum rear stretching speed of more than 0.02 meter/second. An independent claim is also included for a method for extracting body fluid.
