What happened to you miss A's Jia?

miss A's Jia updated her twitter account with a sad post.In the photo above, she looked sad as she was looking at her wound covered with a band. She wrote, " When all were asleep, I was in the bathroom~ ~ ~ ㅜ I scratched my leg and it bled so much. It's my fault! ㅋ ㅋI've got up now! "세벽에 잤다가 화장실갈때~잠덜깨가지구~다쳤어요~ㅜ신기한거~피흘리고있는데~그냥 다시또잤어요!ㅋㅋ 지금 일어났어 봤어요!ㅜㅋㅋㅋ pic.twitter.com/rYZRuk06V7— Jia (@missA_jia)