One of the fundamental values of existance of human beeing is the human healt., For implementing and protection of this values are responsible medical professionals. In proces of their medical duty there are cases of malpraxis, the main purpose of this article is to explain the meaning and specification of this term. We analized multiple points of view about this concept, we made our own point of view about this subjects. This article will be used in my scientific research about the fenomenon of medical professional risc.