A flushing tube for endoscope includes a mounting section configured to be attached to a liquid feeding device, an endoscope connection section configured to be connected to an endoscope, a tubular portion interconnecting the mounting section and the endoscope connection section, an expansion section arranged between the mounting section and the tubular portion, between the endoscope connection section and the tubular portion, or in at least a portion of the tubular portion and configured to be expanded in response to a rise in an internal pressure, and a cover section arranged at an outer circumference of the expansion section and having a color different than a color of the outer circumference of the expansion section, where the cover section causes the outer circumference of the expansion section to be exposed when the expansion section is placed in an expanded state.
