What else do I need to know about rib fractures? Flail chest occurs if 3 or more of your ribs are broken in 2 or more places. This condition may make it hard for you to breathe. Normally, when you take a breath, your rib cage expands. Flail chest prevents your ribs from expanding. This can cause your broken ribs to push inward on your organs. What are the signs and symptoms of a rib fracture? Chest wall pain that worsens when you breathe, move, or cough