An endoscope head or endoscope head attachment for retrofitting a generally known endoscope having an existing internal endoscope head has at least one individual optical unit for image transmission； a lighting source； and a working channel for guiding tools and/or for media to flow through. In addition, the endoscope head or attachment has an internal pivoting device which is designed to pivot at least one section of the endoscope head or attachment from a prograde orientation into a lateral or a retrograde orientation. The optical unit and the working channel of the endoscope head or attachment are coupled directly or indirectly to the pivoting device, so that they can be pivoted together with the latter.
