Dystonia

Also called Cervical dystonia, Torticollis, Blepharospasm, or Writer's cramp

Dystonia is a condition in which muscles contract involuntarily, causing repetitive twisting movements or abnormal, sometimes painful postures. It can affect one part of the body, such as the neck, eyelids or hand, or several parts. It is caused by problems in the parts of the brain that control movement.

Last updated Nov 9, 2026

What it is

Some types are inherited or start in childhood, while others start in adulthood. Some medicines can also cause it.

There is no cure, but treatment can help a lot. Botulinum toxin injections are often used for dystonia in one area. Medicines, physiotherapy and, in some cases, deep brain stimulation surgery may also help.

Common signs

  • Muscle spasms or cramps
  • The head twisting or pulling to one side
  • Uncontrolled blinking or eyes closing
  • A hand cramping when writing
  • Tremor

How it is usually diagnosed

  • Assessment by a neurologist
  • Blood tests, scans or genetic tests in some cases

Records worth keeping

Keeping these together makes each appointment easier, especially when you see a new doctor:

  • Neurology letters
  • Dates and doses of botulinum toxin injections and how well they worked
  • Genetic test results, if done
  • Physiotherapy plans

Questions to ask your doctor

  • What type of dystonia is it, and is it inherited?
  • Would injections help me?
  • Could any of my medicines be causing it?

When to get help right away

Call 112 or go to the nearest emergency department if you have:

  • Sudden severe muscle spasms affecting breathing or swallowing, especially after starting a new medicine: call 112

This page is general information. It is not a diagnosis and does not replace a doctor who knows your history. Medfold keeps your records organised; it does not interpret them.

Sources