Borderline Personality Disorder (BPD) is a complex mental health condition characterized by unstable emotions, self-image, and relationships. Individuals with BPD often experience intense mood swings, impulsive behaviors, and a chronic sense of emptiness. Early diagnosis with a BPD test like Behaveo’s shown below, plus appropriate treatment, are crucial for managing symptoms and improving quality of life.

During my time as a mental health nurse in a psychiatric hospital, I worked closely with people who were admitted with BPD, so I learned a tremendous amount about the condition and, importantly, how to lessen the intensity of their symptoms so they could live as ‘stable’ a life as they possibly could. I also learned the diagnostic criteria and have used this to create Behaveo’s very own free and online BPD test, further down this page.

Did you know that BPD & Codependency are closely related? Take our Codependency Test today.

Importance of early diagnosis for BPD

Early detection and professional evaluation of Borderline Personality Disorder (BPD) are crucial for several reasons. Firstly, identifying BPD in its early stages allows individuals to begin treatment sooner, increasing the likelihood of better long-term outcomes.

Timely intervention can help prevent the worsening of symptoms, reduce the risk of self-harm or suicidal behavior, and enhance overall well-being. Second, a professional evaluation by a mental health expert ensures accurate diagnosis, as BPD symptoms can sometimes overlap with other mental health conditions.

Proper diagnosis is essential for developing an effective, personalized treatment plan that addresses the unique needs and challenges of each individual, ultimately improving their quality of life and fostering healthier relationships.

What’s the average age of a BPD diagnosis

The average age of onset for Borderline Personality Disorder (BPD) is during late adolescence or early adulthood. Most individuals with BPD start experiencing symptoms in their teenage years, and many are diagnosed in their early 20s.

However, BPD can also be diagnosed in older adults, although this is less common. It is important to note that mental health professionals are generally cautious about diagnosing BPD in adolescents, as some of the symptoms may be attributed to typical adolescent development.

Nonetheless, early intervention and appropriate treatment can be beneficial for individuals displaying BPD symptoms at a young age.

BPD test information

Welcome to our online BPD test, created to help you gain insights into the possible presence of Borderline Personality Disorder (BPD) symptoms, designed by former mental health professional in collaboration with a practicing psychiatrist using the Diagnostic and Statistical Manual of Mental Disorders (DSM).

Behaveo’s user-friendly screening tool aims to provide a preliminary understanding of your emotional experiences and guide you towards professional assistance if needed. Please answer the following questions honestly and to the best of your ability, keeping in mind that this test is not a substitute for a formal diagnosis by a mental health professional. Let’s get started on your journey towards better self-awareness and well-being.

The purpose of Behaveo’s BPD test

The purpose of a BPD test, particularly an online self-administered screening tool, is to help individuals identify potential symptoms of Borderline Personality Disorder (BPD).

These tests can serve as a preliminary step in understanding one’s emotional experiences and behaviors, raising awareness of BPD, and prompting further evaluation. BPD tests can help individuals recognize patterns that may be indicative of the disorder and encourage them to seek professional help if needed.

How the online BPD test works

A series of questions: Behaveo’s BPD test consists of multiple questions designed to assess various aspects of BPD, including emotional instability, impulsivity, relationship issues, self-image, feelings of emptiness, anger, self-harm or suicidal behaviors, and paranoid or dissociative symptoms.

Self-assessment: This test is self-administered, so you will be asked to honestly evaluate your thoughts, feelings, and behaviors based on your experiences. This requires honest introspection and self-awareness. If you don’t feel you can give completely honest answers, please take the BPD test with a trusted family member or friend.

Different question formats: You will encounter questions with multiple-choice answers, number scales, and yes/no options. This format is designed to make it easy for you to select the most accurate response based on your experiences.

Short duration: Depending on how long you take to evaluate the answers, this BPD test should take anywhere from a few minutes to around 15 minutes to complete in total.

Results and interpretation: After completing the BPD test, you will usually receive a summary of your results, indicating the likelihood of having BPD symptoms based on your responses. Keep in mind that these results are not a formal diagnosis and should be discussed with a mental health professional for a comprehensive evaluation.

Confidentiality: Behaveo’s online BPD test maintains 100% complete confidentiality, does not require you to provide personally identifiable information and will never be shared with third-parties.

The BPD Test

Take our free, online BPD test by answering the questions below. You don’t have to enter your personal email should you wish not to, but we do need a valid email address to send your results to. Visit to quickly create a free, anonymous, temporary email address instead and input it below.

e.g reckless spending, substance abuse, binge eating, or risky sexual activities.
e.g. feeling of detached from reality or yourself

Disclaimer: It is important to note that this test is not a diagnostic tool and should not replace a comprehensive assessment by a mental health professional. A proper diagnosis is essential for determining the most appropriate treatment options and support for individuals experiencing BPD symptoms.

Seeking professional help for a full evaluation

Seeking professional help for a comprehensive evaluation is essential if you suspect you might have Borderline Personality Disorder (BPD) or if your test results suggest a likelihood of having BPD symptoms. A mental health professional, such as a psychiatrist or psychologist, can accurately assess your situation, provide a formal diagnosis, and develop a personalized treatment plan tailored to your needs.

If you’re seeking help on behalf of a close person to you, you might wanted to read more about the BPD Favorite Person on how to be best supportive to them.

Professional evaluation often involves in-depth interviews, clinical observations, and consideration of your personal history, symptoms, and functioning. A proper diagnosis is crucial, as BPD symptoms can overlap with other mental health conditions. Early intervention and appropriate treatment can significantly improve your quality of life, emotional well-being, and relationships.

Remember that self-administered tests are only preliminary tools to increase awareness and guide you towards professional help. Rely on the expertise of a qualified mental health professional to navigate the complexities of BPD diagnosis and treatment.

BDP test FAQs

How does BPD typically develop?

Borderline Personality Disorder (BPD) develops due to a complex interplay of biopsychosocial factors. Biological factors include genetic predisposition and irregularities in brain function, which can affect emotion regulation and impulsivity. Psychological factors encompass childhood experiences, trauma, and attachment issues, which can contribute to the development of maladaptive thought patterns and coping mechanisms. Social factors, such as relationships, culture, and socio-economic status, can influence the expression and severity of BPD symptoms. The combination of these factors determines an individual’s vulnerability to developing BPD.

BPD test graphic by Cambridge Press
© Cambridge University Press 2020

How common is BPD in the United States?

Estimates suggest that approximately 1.6% of the adult population in the United States is diagnosed with Borderline Personality Disorder (BPD). However, some studies indicate that the prevalence of BPD may be as high as 5.9% in the general population. The prevalence may vary depending on the population studied and the diagnostic criteria used. BPD is a complex mental health condition, and its diagnosis requires a comprehensive assessment by a mental health professional.

Factors to consider when interpreting BPD test results

  • Test limitations: Online tests aren’t diagnostic tools and can’t replace professional evaluation.
  • Self-reporting bias: Your answers may be influenced by your current emotional state, biases, or self-perception.
  • Symptom overlap: BPD symptoms can resemble those of other mental health conditions, leading to misinterpretation.
  • Test accuracy: Test quality varies, and some may not be scientifically validated.
  • Importance of professional evaluation: Discuss your results with a mental health professional for a comprehensive assessment and proper diagnosis.

Is BPD commonly misdiagnosed as any other condition?

BPD is often misdiagnosed as other mental health disorders due to overlapping symptoms, presentation and how debilitating they are for the individual. Some of the more common misdiagnoses include:

  1. Bipolar disorder: Both BPD and bipolar disorder can involve mood swings and impulsive behaviors, but the duration and triggers of mood shifts are different. Bipolar disorder involves episodes of mania and depression that can last for weeks or months, whereas BPD mood swings are usually more rapid and often triggered by interpersonal stressors.
  2. Major depressive disorder: Individuals with BPD often experience intense and chronic feelings of emptiness, loneliness, and sadness, which can resemble depressive symptoms. However, BPD is a personality disorder characterized by unstable relationships, self-image, and impulsivity, while major depressive disorder primarily involves persistent low mood and loss of interest in activities.
  3. Anxiety disorders: BPD can present with symptoms of anxiety, such as panic attacks, excessive worry, and fear of abandonment. However, anxiety disorders typically do not involve the same degree of interpersonal difficulties, impulsivity, and identity disturbance seen in BPD.
  4. Post-traumatic stress disorder (PTSD): Trauma and abuse are common in the histories of those with BPD, and the symptoms of BPD, such as emotional dysregulation and dissociation, can resemble those of PTSD. However, PTSD is specifically related to the experience of a traumatic event, while BPD involves a broader pattern of instability in relationships, emotions, and self-image.
  5. Attention deficit hyperactivity disorder (ADHD): Impulsivity and difficulty with attention are common in both BPD and ADHD. However, BPD is characterized by emotional instability and relationship problems, while ADHD primarily involves inattention, hyperactivity, and impulsivity across various settings.
  6. Narcissistic personality disorder: BPD and narcissistic personality disorder can share some traits, such as an unstable sense of self, intense emotions, and impulsivity. However, individuals with narcissistic personality disorder have a grandiose sense of self-importance and a lack of empathy, while those with BPD often have a deep fear of abandonment and struggle with self-worth.

Potential treatment options and approaches for BPD

Potential treatment options and approaches for Borderline Personality Disorder (BPD) often involve a combination of psychotherapy, medication, and support. Evidence-based psychotherapies, such as Dialectical Behavior Therapy (DBT), Mentalization-Based Treatment (MBT), and Schema Therapy, have proven effective in managing BPD symptoms. Medications may be prescribed to address specific symptoms, such as mood swings or depression. Support groups and self-help resources can also complement professional treatment, providing coping strategies and fostering emotional resilience.