This site is targeted at medical and radiology professionals, contains user contributed content and material that may be confusing to a lay audience. Use of this site implies acceptance of our Terms of Use.

Chvostek sign

Chvostek sign is the facial twitch obtained by tapping the distribution of the facial nerve in front of the tragus. It is caused by mechanical irritability of peripheral nerves. It is indicative of hypocalcemia and is the most reliable test for hypocalcemia.

Updating… Please wait.


Error Unable to process the form. Check for errors and try again.

Alert_accept Thank you for updating your details.