A complex is a central pattern in the personal unconscious arranged around a common topic, such as power or rank, of thoughts, memories, expectations and desires. The works of Carl Jung and Sigmund Freud are primarily a psychoanalytic term. An example of a complex would be: if you have an amputated leg while you were a kid, it would have a significant effect on your life even if you overcome your physical condition. An individual will have many opinions, emotions and recollections that reflect on this part of their lives. They may have feelings of inferiority, triumphs and resentment. If these impulses were disturbing and omnipresent, Jung might suggest that he or she had a leg complex. The truth of complexes is generally accepted in the field of profound psychology, an area of psychology that argues that implicit mechanisms control and decide the large majority of the personality. Complexes are typical characteristics of the psychic environment and are always important for analysis and remedy, particularly in the path to individualization or wholeness, according to Jung ‘s accounting of psyche (Sturgeon, 2017). Complexes begin to affect our emotions, feelings and actions without resolution, unintentionally and ill-adjusting, and prevent us from psychological integration. This paper highlighted various psychological complexes which create various cognitive and behavioral impacts.