Whether late homosexuality is determined every time through definite traumatic incidents, I am unable to state, because I have not had the opportunity thoroughly to analyze such a case. The next case seems to me to show that strong emotionally toned episodes may turn a latent into manifest homosexuality: An army officer, 46 years of age, consults me for complete impotence with women. The impotence is of four years’ duration. He has become acquainted with a lady of whom he is very fond and who enjoys an excellent financial status. He could now be a happy man, if he only were a complete man. Asked about his morning erections he blushes. The trouble is not with erections, they do not fail him on other occasions. He is impotent only in contact with women. Finally he admits that since his 38th year he has been carrying on homosexual relations. Since that time his interest in women gradually vanished and he has become impotent. His anamnesis reveals some significant facts. He recalls no homosexual deeds or excitations during childhood and before puberty. He was sexually precocious, masturbated already during the primary school period and was attracted by girls. First coitus at seventeen in a house of prostitution. After that he felt he wanted women very badly but had no homosexual inclination. Then a tremendous experience came into his life which agitated him and after that he was depressed for some time. That was just before his first homosexual act. “Can you tell me something about the nature of that agitation?” “I find it painful to speak of it.” “But you expect help in a rather difficult situation. How should I appraise the situation in its true light if you won’t furnish me the necessary information?” “You are right. But there are things of which it is almost impossible to speak. It is about my mother. But I suppose I cannot help myself otherwise. I must tell you all.