Personality disorders are mental health conditions characterized by longstanding patterns of behavior, thoughts, and emotions that deviate from societal norms and cause difficulties in relationships and daily functioning. Common types of personality disorders include borderline personality disorder, narcissistic personality disorder, obsessive-compulsive personality disorder, and avoidant personality disorder.

Symptoms of personality disorders can vary depending on the type of disorder but may include unstable relationships, extreme mood swings, impulsivity, fear of abandonment, and distorted self-image. Diagnosis of personality disorders typically involves a thorough assessment by mental health professionals, such as psychiatrists or psychologists.