Facial nerve palsy factsheet

Introduction 

Facial nerve palsy is when the facial nerve doesn’t work properly. This makes it hard to move muscles that control facial expressions like: 

  • smiling
  • blinking
  • speaking. 

Facial nerve palsy usually affects one side of the face, making it difficult to express emotions or communicate. This can have a big impact on your child’s quality of life.

It can be caused by: 

  • congenital abnormalities or birth defects
  • injury
  • infection.

 Signs and symptoms

The main symptom of facial nerve palsy is disordered movement of the muscles that control facial expressions. This can include movements like: 

  • smiling
  • squinting
  • blinking
  • closing the eyelid.

Other common symptoms include:

  • loss of feeling in the face
  • teary eyes
  • drooling
  • pain around the jaw or pain in or behind the ear on the affected side
  • increased sensitivity to sound on the affected side
  • headache
  • loss of taste.

Diagnosis

Your child’s doctor will diagnose facial nerve palsy by checking their face and asking them to move their facial muscles. This might include: 

  • closing their eyes
  • lifting their eyebrows
  • smiling
  • frowning. 

Tests like CT or MRI scans can check if any other conditions are causing the symptoms and see how much nerve damage there is.

Treatment

Treatment will be based on your child’s individual health and may involve surgery to repair the nerve. 

Surgery can include:

  • nerve grafts: a healthy nerve is taken from another part of the body to help the damaged facial nerve work again.
  • muscle transfers: muscles, usually from the inner thigh, are moved to the face and powered by the healthy nerve.

 Management

Supporting your child’s recovery and well-being

Treatment aims to help restore the shape of your child’s face. Rehabilitation after surgery involves exercises and therapy to help the muscles get stronger and work together. 

Emotional support and counselling are also important to help your child cope with the treatment and recovery process.

Disclaimer

This factsheet is provided for general information only. It does not constitute health advice and should not be used to diagnose or treat any health condition.

Please consult with your doctor or other health professional to make sure this information is right for you and/or your child.

The Sydney Children’s Hospitals Network does not accept responsibility for inaccuracies or omissions, the interpretation of the information, or for success or appropriateness of any treatment described in the factsheet.

© Sydney Children’s Hospitals Network 2025


This factsheet was produced with support from John Hunter Children's Hospital.