A device for taking a measurement of a dimension of a part of the body of a patient, includes: an electronic tape measure having a portable housing, a winder accommodated in the housing, a tape which is partially wound on the winder and of which a portion, called the “unwound portion”, extends outside the housing, and a measuring module for a measurement, relative to the unwound portion； a consistency control module for checking the consistency of the measurement by at least one consistency rule and at least one context datum； and an alert module for delivering an alert if an inconsistency is detected by the consistency control module.
