Diagnostic and Statistical Manual of Mental Disorders (DSM) has been applied in the field of psychology and psychiatry since 1952. Using these manual individuals was diagnosed with a different mental illness and disorders. Since the implementation of the first edition of the DSM homosexuality is categorized in this guide, where users have given his diagnosis and are proven treatments offered for this 'disorder' / 'disease'. In this edition homosexuality is treated as part of sociopathic personality disorders. By scholars of that time it is regarded as offense and stigmatizing LGBT communities, which cause the first change in DSM for homosexuality. In 1968, the second edition of the DSM, homosexuality has passed into the category of sexual disorders, using the term Sexual Orientation Disturbance. For the third edition of DSM it was again proved that it was stigmatized LGBT community. Different studies in this field but also various movements for human rights made the third edition of the DSM (1980) to change again diagnosis of homosexuality with Homosexuality Dystonic Ego. Changes in perceiving rights and freedoms, the feminist movement, the approach of humanistic psychology, reached in the review of this edition that homosexuality have to be removed from this manual, when by that it was also removing the professional stigma made to the LGBT community in that time.
During the presentation was actively discussed by participants about the way of the removal of homosexuality from the manual, and also discussions about how it has affected the LGBT community. Most of the comments were related to the stigma that was done for homosexuality, but that is also discussed the benefits of placing homosexuality in the DSM, noting studies conducted so at that time as a result of diagnostics homosexuality.
Of reasonable which are seen as most relevant, affecting the removal of homosexuality from the DSM, excuses these that are given by participants are following the completion of the presentation were: activism, research, humanist approach, visibility, smoothness, information & legislation, feminism waves, existentialist approach, the development of scientific justifications that these are elaborated by researchers who have done extensive research about homosexuality and sexual orientation (Suppe, 1982; Bayer, 1981; Stein & Cohen, 1986).