The cause is<unk> , or unknown. One commonly accepted theory is dyskinesia that originates in the basal ganglia of the brain, which is responsible for motor control. Other possible causes are low glucose and/or calcium levels in the blood, often experienced by lactating<unk> . Hormonal fluctuations may be a factor as well, since<unk>  head<unk> s are often more pronounced during estrus.
Idiopathic head tremor in dogs
Infantile convulsions and choreoathetosis
Acute cerebellar ataxia of childhood
New Brunswick neurological syndrome of unknown cause
Incontinentia pigmenti achromians
Autosomal dominant nocturnal frontal lobe epilepsy
Bobble-head doll syndrome
Paroxysmal kinesigenic choreoathetosis