Borderline personality disorder (BPD) is a type of personality disorder. You might be diagnosed with a personality disorder if you have difficulties with how you think and feel about yourself and other people, and are having problems in your life as a result.

You might be given a diagnosis of BPD if you experience at least five of the following things, and they've lasted for a long time or have a big impact on your daily life:

• You feel very worried about people abandoning you, and would do anything to stop that happening.
• You have very intense emotions that last from a few hours to a few days and can change quickly (for example, from feeling very happy and confident to suddenly feeling low and sad).
• You don't have a strong sense of who you are, and it can change significantly depending on who you're with.
• You find it very hard to make and keep stable relationships.
• You feel empty a lot of the time.
• You act impulsively and do things that could harm you (such as binge eating, using drugs or driving dangerously).
• You often self-harm or have suicidal feelings.
• You have very intense feelings of anger, which are really difficult to control.
• When very stressed, you may also experience paranoia or dissociation.

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