person with half of their face covered by shadows
person with half of their face covered by shadows
person with half of their face covered by shadows

Borderline Personality Disorder

What is borderline personality disorder?

Borderline personality disorder (BPD) is a mental illness. It may also be called emotionally unstable personality disorder. People with BPD have unstable moods and can act recklessly. They also have a hard time managing their emotions consistently. If you have BPD, you may have problems with daily tasks, obligations, and life events. You may have trouble keeping jobs and relationships. And you may use food, alcohol, or other substances to cope.

It’s important to get treatment because you are at higher risk for suicide. You are also at higher risk for depression, anxiety, substance abuse, and self-harm. Experts are still learning about the condition. Certain kinds of treatment can help and are often quite successful.

What causes borderline personality disorder?

Mental health experts don’t know exactly what causes BPD. Some studies have shown it may be passed down in families. Your social and cultural surroundings may also play a part. For example, you may be at higher risk for BPD if you are part of a community with unstable relationships. People are at a higher risk for getting BPD if they have suffered from childhood trauma, abuse, or neglect. Living with parents or guardians who have a history of substance abuse or criminal activity may increase the risk as well.

What are the symptoms of borderline personality disorder?

The symptoms of BPD often start during the teen years. Symptoms can be a bit different for each person. But people with BPD will have at least five of these symptoms over time:

  • A pattern of severe mood changes over hours or days

  • Extreme anger and problems controlling anger

  • Strong, up-and-down relationships with family and friends that can go quickly from very close to anger and hatred

  • Extreme fear of and reactions to abandonment, and extreme behaviors to avoid abandonment

  • A rapidly changing sense of self that can cause sudden changes in goals, values, or behaviors

  • Feeling disconnected from themselves, their body, or reality, or having paranoid thoughts

  • Ongoing feelings of emptiness

  • Self-destructive behaviors such as substance abuse, binge eating, unsafe sex with multiple partners, unsafe driving, or reckless spending

  • Suicide attempts or self-harming behavior such as cutting, hair pulling, or burning

The symptoms of BPD may look like other health conditions or problems. Always talk with your healthcare provider for a diagnosis.

How is borderline personality disorder diagnosed?

If you have BPD symptoms, you can be diagnosed by a mental health provider. This type of specialist can include a psychiatrist or a psychologist. Or you may be seen by a licensed clinical social worker (LCSW) or psychiatric nurse practitioner.

The mental health provider will ask about your health history and your symptoms. You may be asked about your family’s history of mental health conditions. You may also have a physical exam. This can rule out other illness. Make sure to tell the mental health provider about any health problems you have and any medicines you take.

How is borderline personality disorder treated?

Treatment will depend on your symptoms, age, and general health. It will also depend on how severe the condition is.

Many people with BPD respond well to treatment and get better. The most common treatment for BPD is psychotherapy. It can be done one-on-one or in a group setting. It may also be helpful if your family is part of the treatment. A trained psychotherapist may use one or more of these methods:

  • Cognitive behavioral therapy (CBT). This gives you tools to help change your thoughts and actions.

  • Dialectical behavior therapy. This helps you to be more aware of the current moment. It teaches you how to reduce extreme emotions and actions.

  • Schema-focused therapy. This helps you change how you see yourself. It helps you turn negative views into more positive ones.

  • Systems Training for Emotional Predictability and Problem Solving (STEPPS). This trains you to use tools to manage your reactions to certain situations. Family and friends are also trained.

Medicines can also help some people with BPD. Medicines are generally not the first line of treatment because their benefits in treating BPD are unclear. When prescribed, medicines are used to treat specific symptoms such as depression or mood swings.

Neuroleptic and atypical antipsychotic medicine can help with some symptoms. Antidepressant and anti-anxiety medicine can be used to treat symptoms of depression or anxiety that may happen at the same time as BPD.

If you have severe symptoms, you may need hospital care for a time.

What are possible complications of borderline personality disorder?

BPD may seriously affect a person’s ability to cope and function in a job or in school. Other common problems that affect people with BPD include getting other mood disorders such as:

  • Anxiety

  • Depression

  • Bipolar disorder

  • Substance abuse

  • Eating disorders

  • Other psychiatric conditions

The person may have repeated hospitalizations due to repeated suicide attempts, self-harm, and disruptive behaviors. It can even lead to multiple prison sentences.

Living with borderline personality disorder

If you have BPD:

  • See your healthcare provider or therapist on a regular schedule. Don’t skip appointments.

  • Make sure to get enough sleep. Tell your healthcare provider if you’re having trouble sleeping.

  • Eat a healthy diet, and have regular mealtimes.

  • Be physically active to help reduce stress and boost mood. Aim for 30 minutes a day of moderate activity.

  • Keep track of people, places, or situations that trigger your symptoms. Don't use drugs or alcohol. They can make symptoms worse.

  • Talk with your healthcare provider right away if your symptoms get worse, or if you feel suicidal.

Call 988 in a crisis

  • Call or text 988 now if you have thoughts of harming yourself or others and have a plan and the means to do so. When you call or text 988, you will be connected to trained crisis counselors at the 988 Suicide & Crisis Lifeline. The Lifeline is free and available 24/7. An online chat option is also available at You can also call the Lifeline at 800-273-8255.

When should I call my healthcare provider?

Tell your healthcare provider if:

  • You have new symptoms

  • Your symptoms get worse

Key points about borderline personality disorder

  • Borderline personality disorder (BPD) is a mental health problem. It can make you feel impulsive, reckless, moody, and emotionally unstable.

  • BPD can be caused by living in a disruptive environment with unstable family support.

  • People often seek medical help after attempting self-harm including cutting, hair pulling, self-mutilation, and suicide.

  • People with BPD generally do very well with medical and cognitive therapy treatment.

  • Early diagnosis can improve the person’s long-term quality of life. It can also help the person form stable relationships.

  • Symptoms tend to be chronic and lifelong. But they can be managed with correct treatment and support.

Next steps

Tips to help you get the most from a visit to your healthcare provider:

  • Know the reason for your visit and what you want to happen.

  • Before your visit, write down questions you want answered.

  • Bring someone with you to help you ask questions and remember what your healthcare provider tells you.

  • At the visit, write down the name of a new diagnosis and any new medicines, treatments, or tests. Also write down any new instructions your healthcare provider gives you.

  • Know why a new medicine or treatment is prescribed and how it will help you. Also know what the side effects are.

  • Ask if your condition can be treated in other ways.

  • Know why a test or procedure is recommended and what the results could mean.

  • Know what to expect if you do not take the medicine or have the test or procedure.

  • If you have a follow-up appointment, write down the date, time, and purpose for that visit.

  • Know how you can contact your healthcare provider if you have questions.

Request an Appointment

Find a Doctor
Find a Doctor