The impulse of exhibition is, as a rule, sudden and irresistible. At the sight of an individual of the other sex, the patient is suddenly seized by the unconquerable desire to expose pudibilia, even if the patient happens to be in the street or in a public garden. If the patient tries to oppose the impulse, he is generally seized with a feeling of anxiety and fear, of oppression in the chest and with palpitation of the heart. Ch. Laseque (Union Médicale, 1877, p. 709), who first named this anomaly “exhibitionism,” remarks that the exhibitionist finds enough pleasure and satisfaction in this platonic manifestation and does not look for more direct relations with the person to whom he shows virilia sua. The cases of exhibitionism, says Krafft-Ebing, thus far recorded are exclusively those of men who ostentatiously expose virilia sua to persons of the opposite sex, and whom in some instances they even pursue, without, however, becoming aggressive. The following few cases of male exhibitionism may serve as illustrations of this strange anomaly: George Verret (Annales Médico-Psychologiques Séc. 101; 1912, p. 554) reports the case of a physician who, on different occasions, exhibited virilia sua before women and children. At these exhibitions mentula remained invariably in a flaccid condition. Sometimes he stood before the window of his bed-room and exposed his virilia to young girls who lived in an opposite house, who happened to be at their window. At other times he exhibited his organs in public and private gardens. At some occasions he showed virilia sua to his female patients in his office. The doctor was tried, found guilty and sent away to the penitentiary for three months. The following case, observed by the author, is remarkable on account of the prominence of the patient. One of the most prominent gynaecologists of a certain city, occupying a chair at the medical school, after the examination of a young married woman, resolvit bracas et mentulam protrahens posuit in manibus mulieris. This sudden exhibition took the young lady so by surprise that she was completely stunned and could not utter a word. When she came to the realization what had happened, she gave one scream and left the room, leaving the professor still standing virilibus expositis in manibus suis. Before going home, the young lady immediately called upon the author, who had sent her to the professor, and told him what had happened. She was advised not to tell anybody, not even her husband, about the disagreeable affair until the author had communicated with the professor. When the latter was called up by telephone, he immediately hastened to the author’s office and cried and begged the author to exert his influence with the young lady not to expose him and ruin his entire career. He excused himself, that being abstinent, the examination of the beautiful young woman excited him so that he did not know what he was doing.