A clinical fact is defined by the field in which it is situated. In the field of psychoanalysis, the author makes a distinction between psychoanalytic clinical facts arising outside the analytic situation, for example, during interviews or in the applied psychoanalysis, and psychoanalytic clinical facts arising within the psychoanalytic situation, where they find their full value in the transference and countertransference relationship. The author gives two illustrations of this. The characteristics of psychoanalytic clinical facts are that they are observable and communicable, and that they have at the same time a fixed and a transformational aspect. During a preliminary interview it is fruitful to use psychoanalytic clinical facts to open the patient to his/her psychic life through contact with the psychoanalyst.