Brudzinski's Sign is a clinically elicited physical sign of meningitis. Brudzinski's Sign is characterized by flexion of hips and knees when neck is flexed. This occurs as a result of severe neck stiffness. Reference: https://medlineplus.gov/ency/imagepages/19069.htm#:~:text=One%20of%20the%20physically%20demonstrable,when%20the%20neck%20is%20flexed. Image via: https://medlineplus.gov/ency/imagepages/19069.htm#:~:text=One%20of%20the%20physically%20demonstrable,when%20the%20neck%20is%20flexed.