Causes of facial nerve damage
Facial nerves are most often damaged as a result of trauma. The face contains an intricate network of nerves that is susceptible to damage from accidents or surgery. The most common causes of facial nerve damage are:
- Penetrating injuries (for example, from a car accident or occupational injury)
- Swelling as a result of trauma that impinges on nerve lines
- Surgery (for example, to remove a tumor)
In many cases, however, the precise cause of nerve damage cannot be identified. This is especially the case when damage occurs when the individual is healthy and has not sustained an injury or been ill. Bell’s Palsy is the name given to cases where the cause of nerve damage cannot be identified.