There are many types of personality disorders, each one with its medical name. In general, people with these disorders have a hard time getting along with other people. They have difficulty understanding themselves and others, making them irritable, demanding, hostile, fearful, or manipulative.
The symptoms vary from one type of personality disorder to another. Personality disorders are among the most challenging forms of mental illness to treat. Often, people with these disorders don’t seek help because they can function in their day-to-day lives. They may blame others as the source of dysfunction in their relationships rather than considering that the problem is within themselves. Professional counseling, therapy, and medication are the most effective treatments.