An endoscope includes: a universal cable that joins an operation portion and a connector a signal cable inserted through an inside of the universal cable a frame arranged at a portion of the connector, from which the universal cable extends out, to surround an outer circumference of the universal cable and a hole formed in a barrel portion of the frame, the hole allowing the signal cable to be inserted therethrough. An excess part of the signal cable is drawn out from the hole and the excess part is wound and stored on the barrel portion of the frame, the barrel portion of the frame with the excess part of the signal cable wound and stored thereon is covered by a rigid tube detachably fixed to the connector, and the rigid tube is covered by a bend preventing portion to reduce concentration of stress from an external force.