There has been a lot of controversy about the potential harmfulness of professional care for unwanted same-sex attraction and behavior (SSA or homosexuality). This paper reviews the ethics of all medical and mental health professionals to avoid harm and do good; discusses the known potential for harm when using any mental health treatment for any problem; clarifies steps taken to promote ethical professional care for unwanted SSA; notes the injustice and possible biases of those who warn about the potential for harm of psychotherapy for unwanted SSA; and documents that the research said to show this harmfulness, in the research authors′ own words, does not do so.