#BBCtrending: China's sex capital? (Mandarin subtitles)
19 February 2014 Last updated at 18:26 GMT
Social media users have reacted to the crackdown on prostitution in Dongguan, in southern China, by defending the city and trying to promote a more positive image
Anne-Marie Tomchak reports on how people went online to try and change perceptions.
This #BBCtrending video is now available with Mandarin subtitles.