Kernig's sign is a medical term used to describe a physical examination finding in patients with meningitis or other central nervous system disorders. This sign is characterized by resistance or pain in the muscles of the legs when attempting to straighten the leg at the knee while the hip is flexed. While "Kernig's sign" is the most commonly used term to describe this phenomenon, it can also be referred to as "Kernig's test", "Kernig's maneuver", or "Kernig's syndrome". Other synonyms that may be used to describe this sign include "meningeal irritation sign", "flexion sign", or "Lasegue's sign". Regardless of the term used, Kernig's sign is an important diagnostic tool that can aid in the prompt identification and treatment of serious neurological conditions.
