Chest contusions from airbags or steering wheels can cause bruising, tenderness, and difficulty breathing

https://pr.augustabusinessdaily.com/article/Atlantas-Hurt-911-Injury-Centers-Revolutionizes-Car-Accident-Recovery-with-Doctor-Led-Care-and-Legal-Support?storyId=6827816017bc4f0008d9ab83

Chest contusions from airbags or steering wheels can cause bruising, tenderness, and difficulty breathing, sometimes masking internal organ injuries.