Luise Fremy was born in Aurich, a midsized town in East Frisia, in the northwestern corner of Germany. Her father was a legal official. She completed her schooling locally in 1917, but by 1920 had moved away to Aachen where, in 1920, she undertook a university entrance exam at the higher grammar school ("Oberlyzeum"), and where just a year later she emerged, qualified, from the city's . After a period of unpaid volunteer work as an assistant with the "Aachener Post" (newspaper) during 1921/22, she embarked on her teaching career in the Ruhr region. That lasted only till 1924, however, at which point she took charge of a Sex Advice Clinic in Düsseldorf, which she would continue to head up till 1933.