Lhermitte’s Sign Triggers
Lhermitte’s sign may happen when you move the neck. For instance, if you bend the neck forward to the chest suddenly. Other possible triggers may include exposure to heat, stress, or fatigue. Keep in mind that Lhermitte’s sign and Uhthoff phenomenon are not the same. In people with Uhthoff phenomenon, neurological signs become worse temporarily when people are exposed to heat. [5]
