Borderline personality disorder (BPD) is a mental health condition. People with BPD have extreme mood swings, unstable relationships and trouble controlling their emotions. They have a higher risk of suicide and self-destructive behavior. For more information visit the Cleveland Clinic's website.

If you are not diagnosed with BPD but feel you suffer from symptoms of it you should speak to a mental health professional such as a psychiatrist, psychologist or clinical social worker. They can diagnose borderline personality disorder based on the diagnostic criteria for BPD in the American Psychiatric Association’s Diagnostic and Statistical Manual of Mental Disorders.