Kienle and Friedrich Wolf were arrested on 19 February 1931 for providing abortions.
[2] Their arrests led to popular demonstrations against Paragraph 218, which criminalized abortion in Germany.
[3] In 1932, Kienle published the book Frauen: Aus dem Tagebuch einer Ärztin (transl.
[4] Kienle believed that it was immoral to force birth into a society that lacked gender equality and social security.
[2] Kienle fled to New York after the Nazi Party seized power in Germany.