|Infantilism is defined as interrupted development of physical or emotional qualities and the retention of a child developmental stage as an adult. Hirschfeld used the structure of his Sexual Transitions Theory in distinguishing between "genital," "physical," "psychosexual," and "psychological" infantilism. Hirschfeld explained the occurrence of infantilism, like his explanation of the sexual transitions, as hormonally controlled 6 .
Hirschfeld regarded pedophilia as a form of psychosexual infantilism. Whereas opponents of the repeal of the anti-homosexual clause, article 175, often drew connections between homosexuality and pedophilia or seduction of a minor, Hirschfeld made a clearcut distinction between the two. He tried to free homosexuals from suspicion of pedophiliac tendencies (Forensics). Hirschfeld considered homosexuality to be something "natural," pedophilia, on the other hand, as pathological and deplorable. Hirschfeld's suggested treatment for "child molesters" was castration, which he felt served three purposes:
"first, as punishment, second, as sterilization (to prevent any offspring), and third, as a cure."