An unwarranted tendency to interpret the actions of other people as deliberately threatening or demeaning.
Causes, incidence, and risk factors
The cause of this disorder is unknown, but the incidence appears increased in families with a schizophrenic member.
Signs and tests
A history of paranoid behaviors is common, and a psychological evaluation helps with the diagnosis.
Treatment
Treatment is difficult because the person may be suspicious of the doctor. Medications and therapy are common and effective treatments.
Expectations (prognosis)
Without treatment, this disorder will be chronic; but treatment can be very effective in controlling the paranoia.
Calling your health care provider
If suspicions are interfering with relationships or work, a health care provider or mental health professional should be consulted.