Re: *Vika Azarenka Cheering Thread* - Vikalume 4.
more on bone bruises.
Bone bruises are painful injuries to the bone in which your bone hits a hard surface and results in tiny fractures in the outer layer of the bone, called the cortex. Not identifiable by an X-ray as it is not a true break, a bone bruise typically does not encompass any swelling or bumps that a typical bruise would cause, but boy, do bone bruises take a long time to heal!
A bone bruise typically occurs when your bone hits something that is hard enough to "crack" the outer layer of your bone. Now your body is responsible for repairing the tiny fractures, which can take a long time. The bone consists of several layers of fibers that appear to criss-cross with one another to form solid bone. When a bone bruise occurs, not only does your body have to remove the damaged fiber, but the leaking calcium from the area of the bone that is damaged as well, and start all over. This is why a bone bruise can take so long to heal. It can take days, weeks, and often months for your body to fully repair a bone bruise and rebuild all that was damaged.