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Bell's palsy can trigger an increased sensitivity to sound known as hyperacusis. [6] The cause of Bell's palsy is unknown [1] and it can occur at any age. [4] Risk factors include diabetes, a recent upper respiratory tract infection, and pregnancy. [1] [7] It results from a dysfunction of cranial nerve VII (the facial nerve). [1]
Bell's palsy is the most common cause of acute facial nerve paralysis. [3] [4] There is no known cause of Bell's palsy, [5] [6] although it has been associated with herpes simplex infection. Bell's palsy may develop over several days, and may last several months, in the majority of cases recovering spontaneously.
Most individuals with Bell's palsy experience a spontaneous and full recovery within six months, and many see improvement within a few weeks. Unfortunately, the extent and speed of recovery can vary.
Facial synkinesis is a common sequela to Idiopathic Facial Nerve Paralysis, also called Bell's Palsy or Facial Palsy. [2] Bell's Palsy, which is thought to occur due to a viral reactivation which can lead (through unknown mechanisms) to diffuse axon demyelination and degeneration of the seventh cranial nerve, results in a hemifacial paralysis due to non-functionality of the nerve.
According to the Mayo Clinic, Bell's palsy is a neurological condition that can cause muscles on one side of the face to suddenly weaken.People diagnosed with Bell's palsy experience symptoms ...
According to the Mayo Clinic, Bell's palsy causes weakness in muscles in one side of the face and is often a short-term condition that ultimately improves.. Thomas' revelation comes months after ...
Bell's palsy can trigger hyperacusis if the associated flaccid paralysis affects the tensor tympani, and stapedius, two small muscles of the middle ear. [33] Paralysis of the stapedius muscle prevents its function in dampening the oscillations of the ossicles, causing sound to be abnormally loud on the affected side. [34]
According to the Mayo Clinic, Bell’s palsy “causes sudden weakness in the muscles on one side of the face” but may be temporary and can significantly improve over time. The disorder is known ...