Weird Asia News says that the trend is meant to appeal to the kind of man who wants an "injured doll" -- and says that the white bandages denote virginal grace, while the black ones mean wickedness.
Link to Mainichi Daily News, Link to Weird Asia News
I write books. My latest is a YA science fiction novel called Homeland (it's the sequel to Little Brother). More books: Rapture of the Nerds (a novel, with Charlie Stross); With a Little Help (short stories); and The Great Big Beautiful Tomorrow (novella and nonfic). I speak all over the place and I tweet and tumble, too.