Hello I m 12 years old and a girl. Whenever I bend my knees they crack but it doesn t hurt. When I try to squat I can t because the pain in my knee is too much to handle. If I sleep with knees bent at night they will hurt a whole lot the following day. Also, when I bend my leg really fast, back and forth, they make this crunching sound. What is happening?
Asked On : Sun, 6 Feb 2011