An electronic thermometer has a probe having a temperature measuring unit at its end, a temperature sensor arranged in the temperature measuring unit of the probe, a contact sensor arranged in a position shifter from the temperature measuring unit of the probe toward a thermometer body, a determining unit for determining whether a state of contact between the temperature measuring unit and a measurement target portion of a user is good or not, based on outputs of both the temperature sensor and the contact sensor, and a notifying unit for providing a notification according to a result of the determination by the determining unit.