This article will analyse the multidirectional and reciprocal influence between medicine and society, at a linguistic (terminological) level, which gave rise to the current classification and principles regarding hermaphroditism. It is based on the evidence of pseudo­hermaphroditism and its perception in the tradition «The seven hairs of the devil». In addition, the consequent transformation of the perception of the hermaphrodite patient will be evaluated; and thus also the change in their treatment as well as in the medical interventions that vary depending on the relationship between the patient’s self­perception and the limits set by the World Health Organisation will be evaluated. Finally, a brief review will be made of the current state of the art of the basic criteria of the doctor­patient relationship when treating a person with this condition.