Yakuza, or Japanese gangsters, are known for their elaborate tattoos which often cover their entire bodies. The tattoos have a long and rich history, and have been used to signify membership in the yakuza for centuries. In recent years, female yakuza have begun to adopt tattoos, and back tattoos in particular have become increasingly popular among them. In this article, we'll take a look at the history and meaning behind female yakuza back tattoos.