Diagnosis of Schizoid Personality Disorder

A diagnosis is made via a medical professional’s evaluation, based on specific criteria.

For medical professionals to diagnose schizoid personality disorder, individuals must have a persistent detachment from and general disinterest in social relationships and limited expression of emotions in interpersonal interactions, as shown by at least four of the following:

1. They do not want or enjoy close relationships, including those with family members.
2. They strongly prefer solitary activities.
3. They have little, if any, interest in sexual activity with another person.
4. They enjoy few, if any, activities.
5. They have no close friends or confidants, except possibly first-degree relatives.
6. They appear to be indifferent to the praise or criticism of others.
7. They are emotionally cold and detached and do not express emotion in response to events or interactions with others.

Also, symptoms must have begun by early adulthood.