People with schizotypal personality disorder may be severely disturbed. Their odd behavior may resemble that of people with schizophrenia. For example, they may also have unusual preoccupations and fears, such as fears of being monitored by government agencies.

More commonly, however, people with schizotypal personality disorder behave oddly and have unusual beliefs (aliens, witchcraft, etc.). They cling to these beliefs so strongly that it isolates them from normal relationships.

Full-blown hallucinations are unusual. However, people with schizotypal personality disorder are upset by their difficulty in forming and maintaining close relationships.

Some of the common signs of schizotypal personality disorder include the following:

• Discomfort in social situations
• Odd beliefs, fantasies, or preoccupations
• Odd behavior or appearance
• Odd speech
• No close friends
• Inappropriate displays of feelings