By eHow Health Editor
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Bone bruises occur when the periostium, or outer covering of the bone, becomes injured. While not as severe as a fracture, a bone bruise can be extremely painful and requires weeks or even months to fully heal. Because children are extremely active and prone to boo boo's, bone bruises are particularly common. However, with the right treatment, your little one can be up and running again in no time.
eHow Health Editor