What are the different types of dystonia?

Primary & Secondary. Primary - originating from within the central nervous system to include brain injury. Secondary - other causes to include medications.
Three types. Most cases fall into three different types. There is focal where just a very specific area of muscle activity is involved. This can be fingers, neck, throat, foot, etc. Then there is regional where specific motor functions are involved such as inability to open jars or button clothes or turn knobs or throw a ball, etc. Then there is generalized where the whole body goes rigid and into spasm.