Consciousness is a complex philosophical concept used in a variety of fields of knowledge (for example, legal, historical consciousness, etc.). In medicine, the concept of consciousness is one of the fundamental ones. Impaired consciousness is understood as a disorder in the reflection of the environment, objects, phenomena and their connections, manifested by the complete impossibility or indistinctness of perception of the environment, disorientation in time, place, surrounding people, one's own personality, incoherence of thinking.