Conversion/Dissociative disorders can be of many types. Some common types are discussed here.
This problem involves physical symptoms that have no apparent medical cause. Symptoms can range from fainting attacks, difficulty in speaking, deafness, blindnessabnormal movements and even paralysis. The physical symptoms seem to suggest a neurological condition but on further evaluation, no physical examination can yield conclusive results.
The psychological theories indicate possibility that some psychological distress might be converted into the physical symptom. Once the psychological issue or conflict is addressed, the person may experience relief from the symptom.