Patients with facial nerve damage (7th cranial nerve) - including central facial paralysis or peripheral facial paralysis - suffer from weakness of the facial expression muscles. 7th cranial nerve graft surgery is one of the most common solutions today to treat this condition.

Hemifacial spasm is a condition in which one half of your face is affected. It usually starts with twitching around one eye. Although it is not a serious condition, it can be disruptive to your daily life.