Lhermitte sign is a sudden, uncomfortable sensation that travels down the neck to the spine when flexing the neck. It can be a symptom of conditions affecting the spinal cord, like multiple sclerosis.

It’s called Lhermitte’s sign, or barber chair sign, and it’s often one of the symptoms that people mention when they’re first diagnosed with multiple sclerosis. The problem can be painful ...

Lhermitte’s sign is a short, intense, electric-shock like sensation that passes down the neck and spine and radiates through the trunk and limbs. It is a symptom of multiple sclerosis (MS ...