Abstract: A measurement apparatus includes a time measurement unit that measures an observation time from when a distal end portion of an endoscope arrives at the predetermined site in a subject to when an endoscopy ends.

Abstract: An endoscope apparatus includes a connection interface to which an endoscope is connected, a communication interface that transmits/receives signals to/from an external apparatus, a computation device that determines whether or not the endoscope is connected to the connection interface, switches a processing state of the endoscope apparatus from an inspection state to a non-inspection state or from a non-inspection state to an inspection state, and performs control to switch the processing state from the inspection state to the non-inspection state upon acquiring an instruction signal for instructing switching of the processing state from the inspection state to the non-inspection state from the external apparatus via the communication interface, when it is determined that the endoscope is not connected to the connection interface.