The invention relates to a tampon applicator, comprising: a vaginal insertion tube (11) intended to house the tampon (T) to be used, and a plunger (12) which is mounted coaxially in one end of the tube (11) and which is used to push and release the tampon (T) through a second end of the tube (1). According to the invention, the applicator (1) can be re-used and the insertion tube (11) comprises a side window (13) through which a tampon (T) can be inserted into the tube (11), before each use of the applicator by the user.
