Physiologic stability is a omnipresent concept in the scientific literature. However, there is a limited number of conceptual definition of this concept in the literature. A concept analysis about physiologic stability is a way to set the theoric basis of this multidimensional concept. Mutilidimension illutrated by the multiples utilisations of the concept in a various way. In this meaning, the identification of the attributes, the antecedents and the consequences of the physiologic stability concept conduct to the elaboration of a conceptual definition for the concept. The aim of this scientific contribution is also to develop a reflexion about the utilisation of the concept physiologic stability without defining it at first.