An endoscope comprising: a proximal endoscope handle comprising at least one rotatable operating unit (9; 13), preferably a handle wheel, and at least one wire receiving unit (8; 12), preferably a wire drum, the wire receiving unit (8; 12) being rotatably connected to the operating unit (9; 13); a distal tip unit configured to be inserted into a patient's body cavity; an endoscope shaft connecting the endoscope handle and the distal tip unit; and at least one steering wire (6; 7; 10; 11), a proximal end portion of which being held by or fixed to the wire receiving unit (8; 12), the steering wire (6; 7; 10; 11) being guided from the wire receiving unit (8; 12) to the distal tip unit and being configured to be pulled by rotating the operating unit (9; 13), thereby tilting the distal tip unit in at least a defined first direction, wherein the proximal end portion of the at least one steering wire (6; 7; 10; 11) is wound around/on the wire receiving unit (8; 12) for at least one full turn, and the wire receiving unit (8; 12) comprises a first groove, a second groove and a third groove, the grooves (18a, 18b, 18c) extending in a circumferential direction of the wire receiving unit (8; 12) and guiding/accommodating two steering wire end portions, characterized in that the two steering wire end portions both enter the same circumferential groove among the first groove, the second groove and the third groove, in particular at diametrically opposed positions of the respective circumferential groove, and transition to their respective own groove among the first groove, the second groove and the third groove when wound around the wire receiving unit (8; 12). a proximal endoscope handle comprising at least one rotatable operating unit (9; 13), preferably a handle wheel, and at least one wire receiving unit (8; 12), preferably a wire drum, the wire receiving unit (8; 12) being rotatably connected to the operating unit (9; 13); a distal tip unit configured to be inserted into a patient's body cavity; an endoscope shaft connecting the endoscope handle and the distal tip unit; and at least one steering wire (6; 7; 10; 11), a proximal end portion of which being held by or fixed to the wire receiving unit (8; 12), the steering wire (6; 7; 10; 11) being guided from the wire receiving unit (8; 12) to the distal tip unit and being configured to be pulled by rotating the operating unit (9; 13), thereby tilting the distal tip unit in at least a defined first direction, wherein the proximal end portion of the at least one steering wire (6; 7; 10; 11) is wound around/on the wire receiving unit (8; 12) for at least one full turn, and the wire receiving unit (8; 12) comprises a first groove, a second groove and a third groove, the grooves (18a, 18b, 18c) extending in a circumferential direction of the wire receiving unit (8; 12) and guiding/accommodating two steering wire end portions, characterized in that the two steering wire end portions both enter the same circumferential groove among the first groove, the second groove and the third groove, in particular at diametrically opposed positions of the respective circumferential groove, and transition to their respective own groove among the first groove, the second groove and the third groove when wound around the wire receiving unit (8; 12).