Patients with medically unexplained neurological symptoms may not have any psychological stressor, hence the use of the term "functional neurological symptom disorder" in DSM-5 as opposed to "conversion disorder", and DSM-5s removal of the need for a psychological trigger. Treatment
There are a number of different treatments available to treat and manage conversion syndrome. Treatments for conversion syndrome include hypnosis, psychotherapy, physical therapy, stress management, and transcranial magnetic stimulation. Treatment plans will consider duration and presentation of symptoms and may include one or multiple of the above treatments. This may include the following:
Occupational therapy to maintain autonomy in activities of daily living;
Physiotherapy where appropriate. Treatment of comorbid depression or anxiety if present. Educating patients on the causes of their symptoms might help them learn to manage both the psychiatric and physical aspects of their condition. Psychological counseling is often warranted given the known relationship between conversion disorder and emotional trauma. This approach ideally takes place alongside other types of treatment.There is little evidence-based treatment of conversion disorder. Other treatments such as cognitive behavioral therapy, hypnosis, EMDR, and psychodynamic psychotherapy, EEG brain biofeedback need further trials. Psychoanalytic treatment may possibly be helpful. However, most studies assessing the efficacy of these treatments are of poor quality and larger, better controlled studies are urgently needed. Cognitive Behavioural Therapy is the most common treatment, however boasts a mere 13% improvement rate. Prognosis
Empirical studies have found that the prognosis for conversion disorder varies widely, with some cases resolving in weeks, and others enduring for years or decades.
Conversion disorder is typically seen in people aged 10 to 35, and affects between 0.011% and 0.5% of the general population.Conversion disorder can present with motor or sensory symptoms including any of the following:
Motor symptoms or deficits:

Impaired coordination or balance
Weakness/paralysis of a limb or the entire body (hysterical paralysis or motor conversion disorders)
Impairment or loss of speech (hysterical aphonia)
Difficulty swallowing (dysphagia) or a sensation of a lump in the throat
Urinary retention
Psychogenic non-epileptic seizures or convulsions
Persistent dystonia
Tremor, myoclonus or other movement disorders
Gait problems (astasia-abasia)
Loss of consciousness (fainting)Sensory symptoms or deficits:

Impaired vision (hysterical blindness), double vision
Impaired hearing (deafness)
Loss or disturbance of touch or pain sensationConversion symptoms typically do not conform to known anatomical pathways and physiological mechanisms. It has sometimes been stated that the presenting symptoms tend to reflect the patients own understanding of anatomy and that the less medical knowledge a person has, the more implausible are the presenting symptoms. However, no systematic studies have yet been performed to substantiate this statement. Diagnosis
Definition
Conversion disorder is now contained under the umbrella term functional neurological symptom disorder. In cases of conversion disorder, there is a psychological stressor. The diagnostic criteria for functional neurological symptom disorder, as set out in DSM-5, are:

Specify type of symptom or deficit as:

With weakness or paralysis
With abnormal movement (e.g. tremor, dystonic movement, myoclonus, gait disorder)
With swallowing symptoms
With speech symptoms (e.g. dysphonia, slurred speech)
With attacks or seizures
With amnesia or memory loss
With special sensory loss symptoms (e.g.