The age at which symptoms begin is referred to as age of onset. If an individual develops symptoms prior to approximately age 30, it may be referred to as early-onset or childhood-onset. If the dystonia occurs during the teen years, the term adolescent-onset may be used
If symptoms develop after the age of 30, it is called late-onset or adult-onset
These forms of dystonia are typically early-onset
DYT1 generalized dystonia
Non-DYT1 generalized dystonia
Paroxysmal dystonia & dyskinesias
Dopa-responsive dystonia
Myoclonic dystonia
Rapid-onset dystonia-parkinsonism
X-linked dystonia-parkinsonism
These forms of dystonia are typically adult-onset
Blepharospasm
Cervical dystonia
Embouchure dystonia
Oromandibular dystonia
Laryngeal dystonia - spasmodic dysphonia
Hand dystonia - writer’s cramp
Secondary dystonia may be early- or adult-onset, depending on the underlying cause
