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Chronic motor tic disorder

Chronic vocal tic disorder; Tic - chronic motor tic disorder

Chronic motor tic disorder is a condition that involves quick, uncontrollable movements or vocal outbursts (but not both).

Causes

Chronic motor tic disorder is more common than Tourette syndrome. Chronic tics may be forms of Tourette syndrome. Tics usually start at age 5 or 6 and get worse until age 12. They often improve during adulthood.

Symptoms

A tic is a sudden, fast, repeated movement or sound that has no reason or goal. Tics can involve:

  • Excessive blinking
  • Grimaces of the face
  • Quick movements of the arms, legs, or other areas
  • Sounds (grunts, throat clearing, contractions of the abdomen or diaphragm)

Some people have many kinds of tics.

People with the condition can hold off these symptoms for a short time. But they feel relief when they carry out these movements. They often describe the tics as a response to an inner urge. Some say they have abnormal sensations in the area of the tic before it occurs.

Tics may continue during all stages of sleep. They may get worse with:

  • Excitement
  • Fatigue
  • Heat
  • Stress

Exams and Tests

The doctor can usually diagnose a tic during a physical examination. Tests are generally not needed.

People are diagnosed with the disorder when:

  • They have had the tics nearly every day for more than a year
  • They have not had a tic-free period longer than 3 months

Treatment

Treatment depends on how severe the tics are and how the condition affects you. Medicines and talk therapy (cognitive behavioral therapy) are used when the tics greatly affect daily activities, such as school and job performance.

Medicines can help control or reduce tics. But they have side effects, such as movement and thinking problems.

Outlook (Prognosis)

Children who develop this disorder between ages 6 and 8 often do very well. Symptoms may last 4 to 6 years, and then stop in the early teens without treatment.

When the disorder begins in older children and continues into the 20s, it may become a lifelong condition.

Possible Complications

There are usually no complications.

When to Contact a Medical Professional

There is usually no need to see the health care provider for a tic unless it is severe or disrupts daily life.

If you cannot tell whether you or your child's movements are a tic or something more serious (such as a seizure), call your provider.

References

Ryan CA, Trieu ML, DeMaso DR, Walter HJ. Motor disorders and habits. In: Kliegman RM, Stanton BF, St. Geme JW, Schor NF, eds. Nelson Textbook of Pediatrics. 20th ed. Philadelphia, PA: Elsevier; 2016:chap 24.

Tochen L, Singer HS. Tics and Tourette syndrome. In: Swaiman KF, Ashwal S, Ferriero DM, et al, eds. Swaiman's Pediatric Neurology: Principles and Practice. 6th ed. Philadelphia, PA: Elsevier; 2017:chap 98.

    • Central nervous system and peripheral nervous system

      Central nervous system and peripheral nervous system - illustration

      The central nervous system is comprised of the brain and spinal cord. The peripheral nervous system includes all peripheral nerves.

      Central nervous system and peripheral nervous system

      illustration

    • Brain

      Brain - illustration

      The major areas of the brain have one or more specific functions.

      Brain

      illustration

    • Brain and nervous system

      Brain and nervous system - illustration

      The nervous system controls the many complicated and interconnected functions of the body and mind. Motor, sensory cognitive and autonomic function are all coordinated and driven by the brain and nerves. As people age, nerve cells deteriorated in number and facility, causing some lessening in function.

      Brain and nervous system

      illustration

    • Brain structures

      Brain structures - illustration

      The structures of the brain include the brainstem, consisting of the spinal cord, the medulla oblongata, the pons and the midbrain; the cerebellum; the cerebrum (one half, or hemisphere shown), and the diencephalon.

      Brain structures

      illustration

      • Central nervous system and peripheral nervous system

        Central nervous system and peripheral nervous system - illustration

        The central nervous system is comprised of the brain and spinal cord. The peripheral nervous system includes all peripheral nerves.

        Central nervous system and peripheral nervous system

        illustration

      • Brain

        Brain - illustration

        The major areas of the brain have one or more specific functions.

        Brain

        illustration

      • Brain and nervous system

        Brain and nervous system - illustration

        The nervous system controls the many complicated and interconnected functions of the body and mind. Motor, sensory cognitive and autonomic function are all coordinated and driven by the brain and nerves. As people age, nerve cells deteriorated in number and facility, causing some lessening in function.

        Brain and nervous system

        illustration

      • Brain structures

        Brain structures - illustration

        The structures of the brain include the brainstem, consisting of the spinal cord, the medulla oblongata, the pons and the midbrain; the cerebellum; the cerebrum (one half, or hemisphere shown), and the diencephalon.

        Brain structures

        illustration

      Review Date: 2/27/2018

      Reviewed By: Joseph V. Campellone, MD, Department of Neurology, Cooper Medical School at Rowan University, Camden, NJ. Review provided by VeriMed Healthcare Network. Also reviewed by David Zieve, MD, MHA, Medical Director, Brenda Conaway, Editorial Director, and the A.D.A.M. Editorial team.

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