In a traffic accident, a **polytraumatized** person is someone who suffers from **multiple severe bone fractures**. This means they have several broken bones, which can be very dangerous and requires immediate medical attention.

- **Fractures**: A fracture is a broken bone. Symptoms include intense pain, swelling, deformity, and difficulty moving the affected area. In severe cases, such as a spinal fracture, the person may lose the ability to move and feel.

- **Assessment of the injured**: It is important to check if the injured person has fractures, in addition to other injuries such as bleeding or burns. This helps determine the severity of their condition.

- **Action in case of an injured person**: If the injured person responds, they should not be moved and should be observed for fractures. If they do not respond, it is crucial to check if they are breathing.

In summary, a polytraumatized person is someone with multiple fractures, which requires careful assessment and urgent medical attention to prevent major complications.