What Is Borderline Personality Disorder?
Borderline personality disorder is a personality disorder defined by long-standing instability in how a person regulates emotion, sees themselves, and relates to others.
The DSM-5 groups its criteria around several core domains. Intense or rapidly shifting emotions, known clinically as emotion dysregulation, can feel disproportionate to the situation. Fear of abandonment can drive frantic efforts to avoid real or imagined separation. An unstable sense of identity, sometimes described clinically as identity disturbance, can make goals, values, or self-perception shift depending on circumstance. Impulsivity can show up in areas like spending, driving, or substance use. Relationships may cycle between idealization and disappointment.
According to NIMH, citing the National Comorbidity Survey Replication (2001-2003), an estimated 1.4% of U.S. adults experience BPD. That number is worth sitting with if this pattern has ever made you feel like you’re the only one who deals with it this way.
You don’t need every one of these features to a severe degree to be living with BPD. A diagnosis names a clinical pattern that can guide treatment. Recognizing some of these patterns in your own life can be a starting point for asking whether an evaluation makes sense.
Noticing the Signs in Daily Life
In daily life, this can look like anger that flares quickly and takes hours to settle, or a wave of chronic emptiness that shows up without an obvious trigger. Relationships can also feel intensely close at times and strained at others. A perceived slight, canceled plan, or delayed text may trigger a strong emotional response or fear of rejection or abandonment.
Self-image can be just as unsteady. You might feel confident in your values and direction one month and unable to say what you even want the next. Impulsivity can also show up during periods of intense emotion through behaviors such as spending sprees, reckless driving, or substance use.
Self-harm and suicidal thoughts are a serious and well-documented part of BPD for some people. They deserve direct, clinical attention rather than silence or shame. If you or someone you love is having thoughts of self-harm or suicide, that’s reason enough to call for support now.

Causes and Conditions That Commonly Occur Alongside BPD
No single cause explains BPD. NIMH points to a combination of potential genetic factors, brain-related differences in areas that regulate emotion and impulse control, and environmental elements such as childhood trauma or unstable early relationships. Researchers still study how these factors may contribute to BPD development.
BPD also commonly co-occurs with other conditions. Depression, anxiety disorders, and substance use disorders often appear alongside it, which is why we look at more than the personality disorder itself when we evaluate you.
A treatment plan that addresses mood symptoms without looking at relationship patterns, or impulsivity without considering co-occurring symptoms or other contributing factors, can leave gaps in the clinical picture. That’s part of why a full evaluation matters before we build a treatment plan with you.
Dialectical Behavior Therapy (DBT): The Evidence-Based Approach to BPD
Dialectical Behavior Therapy, or DBT, was developed specifically to treat BPD and is an evidence-based treatment for the condition.
Our DBT combines individual therapy with group skills training. It is built around four core skill areas:
- Mindfulness: being rooted in the present moment as intense emotions rise
- Distress tolerance: getting through a crisis moment without making it worse through an impulsive action
- Emotion regulation: naming feelings precisely and lowering their intensity over time
- Interpersonal effectiveness: asking for what’s needed in a relationship and setting a limit while keeping the relationship intact
These skills are taught in structured group sessions and reinforced one-on-one, giving you practical tools to use the next time an old pattern shows up. DBT may anchor the plan we build with you, whether delivered individually, in a skills group, or both.

What BPD Treatment Looks Like at Redstone
DBT gives you the framework, but treatment at Redstone also accounts for what’s happening around it. When depression, anxiety, or substance use is also part of the picture, treatment can address those needs alongside BPD. When substance use is part of the picture, that becomes dual diagnosis care: one coordinated plan built around both the BPD and the substance use together.
At our facility, we offer PHP, IOP, and outpatient levels of care. PHP means several hours of structured treatment a day, most days of the week, without an overnight stay. It’s the right fit when you need daily support to get stable. IOP means fewer hours, spread across a few days a week, leaving room for work, school, or family. Outpatient means regular individual and group sessions on a lighter schedule, for once you’re steady enough to check in less often.
Where you start usually comes down to how much daily structure you need to stay stable right now. Someone in crisis or struggling to function day to day typically needs more structure than someone who’s already stable enough to manage most of their week on their own.
We don’t provide detox or residential stays directly. If you need either of those first, we help arrange it through a partner provider, then continue your outpatient care once you’re ready.