The influence of emotional stress on the onset and control of bleeding episodes is a well-known fact. Oral surgical procedures are a common cause of severe states of anxiety in hemophiliacs. Anxiety has been shown to trigger and/or complicate an existing hemorrhagic episode in hemophiliacs. This is true in adults as well as children. Hypnosis, when applicable, has been found to be an excellent adjunct for the control of anxiety. It has been observed that in a relaxed and tranquil hemophiliac, his hemorrhagic tendency during and after surgery is considerably decreased.