Facial paralysis is a loss of facial movement due to nerve damage. Your facial muscles may appear to droop or become weak. It can happen on one or both sides of the face.
Facial paralysis is almost caused by:
- Damage or swelling of the facial nerve, which carries signals from the brain to the muscles of the face.
- Damage to the area of the brain that sends signals to the muscles of the face.
In people who are otherwise healthy, facial paralysis is often due to Bell palsy. This is a condition in which the facial nerve becomes inflamed. Stroke may cause facial paralysis. With a stroke, other muscles on one side of the body may also be involved.
Facial paralysis that is due to a brain tumor usually develops slowly. In newborns, facial paralysis may be caused by trauma during birth.
- Symptoms can include headaches, seizures, or hearing loss.
- bending of the mouth to the affected side
- altered sense of taste
- slurred speech
- pain in or behind the ear
- sound hypersensitivity on the affected side
- difficulty eating or drinking