| Common symptoms |
| Clumsy or weak hands |
| Leg weakness or stiffness |
| Neck stiffness |
| Pain in shoulders or arms |
| Unsteady gait |
| Common signs |
| Atrophy of the hand musculature |
| Hyperreflexia |
| Lhermitte's sign (electric shock-like sensation down the center of the back following flexion of the neck) |
| Sensory loss |