An anoscope (1) comprises a hollow base body (2), which extends along an axis (A) between a front end (3) and a rear end (4) and has a through internal longitudinal cavity (6) between the ends (3, 4) and a dilator (5), having a shape elongated longitudinally along the axis (A) and such as to be insertable in a removable manner in the cavity (6) and to project axially from the ends (3, 4) the anoscope (1) being characterised by comprising a position adjustment device (30) for adjusting the position of the dilator (5) inside the cavity(6).
