Hypnotic amnesia which is referred as making an individual forgetting some patch of information while they are in the state of transe. Hypnosis is the stage of altered attention and high suggestibility thus i will label it as a test to check efficiency of the session. For example an individual may be promoted to forget , suppress an event via analogies, cognitive overload and confusion. Hynotic amnesia can be generalized and selective thus it can enable therapist to check the efficiency of hypnosis as an individual is out of transe. It can enable therapist to keep the information within unconscious for the smooth efficiency of hynosis.