Prostitution rose in Berlin and elsewhere in the areas of Europe left ravaged by World War I. This means of survival for desperate women, and sometimes men, became normalized to a degree in the 1920s. During the war, venereal diseases such as syphilis and gonorrhea spread at a rate that warranted government attention. Soldiers at the front contracted these diseases from prostitutes, so the German army responded by granting approval to certain brothels that were inspected by their own medical doctors, and soldiers were rationed coupon books for sexual services at these establishments. Homosexual behaviour was also documented among soldiers at the front. Soldiers returning to Berlin at the end of the War had a different attitude towards their own sexual behaviour than they had a few years previously. Prostitution was frowned on by respectable Berliners, but it continued to the point of becoming entrenched in the city's underground economy and culture. First women with no other means of support turned to the trade, then youths of both genders.