The isolation in prisons is contrary to the human dignity of prisoners, especially when the measure is carried out in inappropriate places, which do not have conditions of safety and health and, of course, ignores the minimum principles of people without freedom. In this order of ideas, only in special conditions and duly justified prisoners can be confined in places of isolation, provided that the establishment has appropriate places, the measure is carried out under strict medical supervision and the prison authorities and carried out for the indispensable time to achieve the proposed objective -health, discipline or security.