A needle tube having a needle tip for puncturing skin； a needle hub； and an absorption part for absorbing a medicine. The needle hub includes: a retention part (first member) for retaining the needle tube； an insertion part into which the output portion of a syringe is inserted； and a flange-like skin contact portion that is disposed so as to cover an area surrounding the needle tube and that makes contacts with and/or faces the skin when a living body is punctured with the needle tube. The absorption part is disposed in the skin contact portion of the needle hub and absorbs medicine that has been spilled during air removal and is held in the skin contact portion so as to thereby prevent the medicine from attaching to or contacting the skin of a user.
