The same girl is sent home to rest. Soon, she realizes that she is having trouble breathing and that the left side of her chest is swollen and bruised. When she touches her side, it hurts, and the pain intensifies when she tries to move. The skin is not broken, however. What could these be signs of?

A fractured rib can cause chest pain, swelling, bruising, and pain that worsens with movement or breathing. Blunt chest injuries can also cause internal bleeding, even when the skin is unbroken. A broken leg does not fit the chest symptoms, and a compound fracture involves a break in the skin.

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