{"id":2301,"date":"2021-10-14T01:17:27","date_gmt":"2021-10-14T05:17:27","guid":{"rendered":"https:\/\/www.med.unc.edu\/ent\/facialnervecenter\/?page_id=2301"},"modified":"2021-11-30T00:17:10","modified_gmt":"2021-11-30T05:17:10","slug":"synkinesis","status":"publish","type":"page","link":"https:\/\/www.med.unc.edu\/ent\/facialnervecenter\/conditions\/synkinesis\/","title":{"rendered":"Synkinesis"},"content":{"rendered":"

Facial synkinesis refers to involuntary and undesirable facial movements (aka \u201csimultaneous movement\u201d) associated with voluntary facial movements. An example is when one eye closes whenever a patient smiles. Synkinesis often develops in patients who have had Bell\u2019s palsy. Synkinesis also frequently occurs in patients who have had Ramsay Hunt Syndrome, facial nerve repair, acoustic neuroma (aka vestibular schwannoma) surgery, and trauma. Synkinesis can occur anytime that the facial nerve is injured but still intact, or anytime the facial nerve has been repaired.<\/p>\n

Why Does Synkinesis Occur?<\/h2>\n

The facial nerve regrows very well after injury as long as it has not been cut. However, as the nerve regrows the new branches do not always go to the proper facial muscles. Sometimes, what originally was one nerve branch becomes two branches going to different muscles in the face. These processes are collectively known as \u201caberrant facial nerve regeneration,\u201d and can be thought of as miswiring of the facial muscles.<\/p>\n

Common Signs and Symptoms of Synkinesis<\/h3>\n