Most common cause of facial weakness

Most common cause of facial weakness

Most common cause of facial weakness is damage to the facial nerve in

[A] Stylomastoid foramen
[B] Posterior edge of the parotid gland
[C] Petrous canal
[D] Cerebellopontine angle



Most common cause of facial weakness


  • The most common cause of facial weakness is damage to the facial nerve in the petrous canal:
  • Bell palsy
  • Caused by a viral infection [ probably ]
  • Viral infection Leads to – Inflammatory swelling of the nerve
  • Inflammation and swelling of nerve – Leads to pressure on the nerve in the canal which cause ischemia.
  • This disorder called as idiopathic or crypto genic facial nerve palsy (Eponym – Bell palsy)


    Subscribe Medicine Question BankWhatsApp Channel

    FREE Updates, MCQs & Questions For Doctors & Medical Students

      Medicine Question Bank
      Enable Notifications OK No thanks