Common Causes Of Periodic Limb Movement Disorder

Periodic limb movement disorder is a form of movement disorder that involves repeated movements of the limbs during sleep. Formerly known as nocturnal myoclonus, the majority of the limb movements associated with this condition occur in the lower limbs, though some patients may experience symptoms in both the lower and upper limbs. Common symptoms include repetitive extensions of the toes and repeated flexion of the ankles, knees, and hips during sleep, and patients may also report daytime sleepiness, disrupted sleep, and general fatigue.