Key Takeaways

  • Black-and-white thinking — where you see things as only good or bad — is common in borderline personality disorder (BPD) and can lead to unstable emotions and relationships.

  • This thinking can worsen other BPD symptoms, like mood swings, making everyday interactions feel overwhelming.

  • With support and strategies like therapy and self-compassion, you can challenge this thinking and find a more balanced view of life.

Black-and-white thinking — also called all-or-nothing thinking or dichotomous thinking — is when you see things as only good or bad, right or wrong, with no in-between. If you have borderline personality disorder (BPD), you might experience this often, making emotions and relationships feel intense and unpredictable. For example, you might see someone as perfect one moment and completely untrustworthy the next.

This kind of thinking is a common symptom of BPD and can affect many areas of your life, including relationships, self-image, and decision making. It can make situations feel more extreme than they really are, which can be overwhelming. With the right support, like therapy and coping strategies, you can learn to recognize and challenge BPD black-and-white thinking to find more balance in your life.

Can black-and-white thinking be a sign of BPD?

Yes, black-and-white thinking can be a sign of BPD. BPD can make it hard for you to see the gray areas in situations, leading to black-and-white thinking. Strong emotions and a fear of abandonment can cause your views to shift quickly, making you see people, situations, or even yourself as all good or all bad. This way of thinking can make relationships and self-image feel unstable.

Black-and-white thinking can also intensify other BPD symptoms, like mood swings and impulsivity. For example, if someone doesn’t reply to your text right away, you might think they’re ignoring you or don’t care, leading to sadness or anger. This pattern can make relationships feel unpredictable and add to emotional ups and downs.

You might notice thoughts like:

  • “If they cared about me, they’d never let me down.”
  • “I made one mistake, so I’m a complete failure.”
  • “They didn’t invite me, so they must hate me.”
  • “I feel happy right now, so my life is amazing. But if I feel sad later, my life is worthless.”

Noticing these thoughts can help you challenge them and find a more balanced perspective.

How it compares to splitting and rigid thinking in other conditions

Black-and-white thinking and splitting are related but distinct patterns of thought that can occur in people with BPD. Understanding their differences can enhance your awareness of your thoughts and emotions.

Here’s how they compare:

  • Black-and-white thinking: You may see things as all good or all bad, without any middle ground. These beliefs tend to be rigid and persistent.
  • Splitting: This experience is similar to black-and-white thinking, but it tends to be more immediate and emotional. Your feelings about someone or something might suddenly flip from idealized to terrible (or vice versa) in response to a situation.

The key difference is speed and emotional intensity. Black-and-white thinking is a more stable, ingrained mindset, while splitting happens in the moment and is often tied to overwhelming emotions. Recognizing these patterns can help you better understand your thoughts and emotions.

People with autism can also think in black and white, but for different reasons. In BPD, it comes from strong emotions and fear of being abandoned. In autism, it’s often because of a need for clear rules and routines. While both can make relationships and decision making hard, the reasons behind them are different.

How inflexible thinking harms people with BPD

Black-and-white thinking is a type of cognitive distortion, or irrational thought pattern. When you struggle with inflexible thinking, cognitive distortions can shape how you see yourself, others, and the world around you. These thought patterns can increase stress and emotional pain.

All-or-nothing thinking can turn small setbacks into major crises. A mistake at work might feel like total failure, or a change in plans could feel completely overwhelming. Over time, this pattern can contribute to feelings of depression, hopelessness, and even suicidal thoughts*, making everyday challenges feel exhausting and harder to manage.

You might see people as either completely trustworthy or entirely unreliable, leading to sudden shifts in how you feel about them. A disagreement could seem like total betrayal, while kindness might make someone seem perfect — until they disappoint you. These extremes can make relationships feel unstable, but recognizing this pattern can help you build more balanced connections.

*The 988 Suicide and Crisis Lifeline offers 24/7 confidential support through trained crisis counselors. If you or someone you care about is experiencing emotional distress, self-harm, or a suicidal crisis, please call or text 988. For life-threatening emergencies or immediate assistance, call 911.

How therapy can help with black-and-white thinking

A therapist can help you spot unhelpful thoughts and identify emotional triggers. They can also assist you in developing more flexible thinking. 

Types of therapy that are effective for BPD and black-and-white thinking include:

Your therapist will work with you to choose the best approach based on your unique needs and circumstances.

How to manage black-and-white thinking on your own

Learning to manage black-and-white thinking takes practice, but small shifts in perspective can make a big difference. Here are some strategies you can try at home or with the support of a therapist:

  • Pause, and challenge your thoughts. If you’re feeling intense emotions or reacting strongly to a situation, take a moment to slow down. Ask yourself: “Is there another way to look at this?” or “What would I tell a friend who felt this way?” This can help you gain clarity and better understand your feelings.
  • Keep a thought journal. Writing down your black-and-white thoughts and looking for middle-ground perspectives can help you break rigid thinking patterns over time.
  • Practice self-compassion. Remind yourself that mistakes don’t define you, and one setback doesn’t mean failure. Learning to be kind to yourself can help shift extreme self-judgments.

With time and support, you can learn to navigate life’s challenges with more flexibility and less emotional distress.

Find care with Rula

If you have BPD and are dealing with black-and-white thinking, remember that you’re not alone. There are strategies you can learn to manage your thoughts and respond to your feelings in healthier ways. Change is possible, and seeking professional support is a great first step toward a happier, more balanced life. 

At Rula, we’re committed to delivering a comprehensive behavioral health experience that helps people feel seen and understood so they can get back to feeling their best. 

Rula makes it easier to find a licensed therapist or psychiatric provider who accepts your insurance so you don’t have to choose between affordable care and excellent care. With a diverse network of more than 15,000 providers, 24/7 crisis support, and appointments available as soon as tomorrow, we’re here to help you make progress — wherever you are on your mental health journey.

About the author

Brandy Chalmers, LPC

Rula's editorial process

Rula's editorial team is on a mission to make science-backed mental health insights accessible and practical for every person seeking to better understand or improve mental wellness.

Members of Rula’s clinical leadership team and other expert providers contribute to all published content, offering guidance on themes and insights based on their firsthand experience in the field. Every piece of content is thoroughly reviewed by a clinician before publishing.

More From Rula

Placeholder plant image
Will anxiety ever go away?
Placeholder plant image
The relationship between self-reliance and mental health
Placeholder plant image
Growing up with passive-aggressive parents