Psychodynamic approach reminds us that, early childhood experience can have an impact on people throughout their live without them being aware that it is happening. Therefore, the approach accepts that everyone can suffer mental illness through no fault of their own. It also offers a ‘cure’ for abnormality through psychoanalysis by explaining the underlying causes in the unconscious, making them conscious, and releasing the patient from the emotional pain caused by the childhood trauma.Many people would agree that, unconscious processes do have an effect on human behaviour, and Freud’s work on how defence mechanisms protect the ego is especially useful.Freud case studies like `Little Hans` and `Anna O` detailed collection of data provided scientific support for his theory and psychoanalysis has enormous explanatory power and has something to say on a huge variety of important topics.The weaknesses of psychodynamic approach are that, it cannot be scientifically observed or tested. In fact, it has never been disproved by any test. There is no way of demonstrating if the unconscious actually exists and verify if a repressed memory is a real or false memory unless independent evidence is available, in that context, most of psychodynamic theories are taken on faith. Freud over emphasised sexual causes and according to Breuer, Freud was prone to “excessive generalisation”.