Borderline personality disorder (BPD) is a mental condition causing inability to control emotions.

Causes
Causes are not very clear but some possibilities are:

• Genetics
• Difficult childhood
• Neglect or separation
• Highly sensitive temperament

Symptoms

• Unstable moods
• Intense emotions
• Impulsiveness
• Depression
• High sensitivity to rejection
• Difficulty in managing interpersonal relationships
• Poor self image
• Suicidal thoughts and behavior
• Substance abuse
• Risky behavior
• Dependency and fear of loneliness

Treatment

• Psychotherapy is the most widely used treatment and includes group or individual therapy.
• Medication is sometimes used to manage symptoms such as anxiety and depression.
• Hospitalization is required in severe cases where constant monitoring may be needed and there is threat of self injury.