Can you have both BPD and CPTSD?

Yes. The two frequently occur together, and a clinician may identify both or decide that one explains your experiences better.

Is BPD just misdiagnosed trauma?

Trauma is common in the histories of people with BPD, but not universal, and the conditions are defined differently. An assessment that asks about your history is the way to find out which description fits you.

Is CPTSD in the DSM-5-TR?

No. Complex PTSD is a diagnosis in the World Health Organization's ICD-11. DSM-5-TR has PTSD, including a dissociative subtype, but no separate complex PTSD diagnosis.

Updated November 12, 2026 · Free, no account or email

BPD vs Complex PTSD (CPTSD): What Is the Difference?

Both involve intense emotions and relationship difficulties. Complex PTSD always follows trauma and includes re-experiencing, avoidance and a persistently negative view of oneself. Borderline personality disorder centres on fear of abandonment, an unstable sense of self and unstable relationships, and it can occur without a trauma history. Many people have features of both.

Take the nine-area symptoms test 10-question BPD test (2 minutes)

Side-by-side comparison

	Borderline personality disorder	Complex PTSD
Trauma history	Common but not required	Required for the diagnosis
Flashbacks, nightmares, avoidance	Not part of the criteria	Core features
View of self	Unstable, shifting	Stable but negative: shame, guilt, worthlessness
Relationships	Intense, swinging between closeness and conflict	Tendency to avoid closeness or feel distant
Fear of abandonment	Central for many	Less prominent
Self-harm and impulsivity	Part of the criteria	Can occur, not defining
Where it is defined	DSM-5-TR and ICD	ICD-11 (not a separate DSM-5-TR diagnosis)

Why the overlap is so large

Many people diagnosed with BPD have lived through childhood abuse or neglect, and both conditions involve difficulty regulating emotions. Some clinicians see them as related responses to early adversity. Others stress that the differences in self-image and relationships point to different treatment needs.

Trauma-focused therapies address memories and triggers directly. Therapies developed for BPD, such as DBT, concentrate on regulating emotion and on relationships. People with both often need elements of each, usually starting with stability and safety.

Checking your own pattern

The in-depth symptoms test asks whether you have lived through trauma, abuse or neglect. If so, your report explains what tends to look similar and what tends to differ, next to your profile across the nine symptom areas.

Check your own experiences

Both tests are free and private. Your answers stay in your browser, and the result is a starting point for a conversation, not a diagnosis.

Take the nine-area symptoms test 10-question BPD test (2 minutes)

Common questions

Can you have both BPD and CPTSD?: Yes. The two frequently occur together, and a clinician may identify both or decide that one explains your experiences better.
Is BPD just misdiagnosed trauma?: Trauma is common in the histories of people with BPD, but not universal, and the conditions are defined differently. An assessment that asks about your history is the way to find out which description fits you.
Is CPTSD in the DSM-5-TR?: No. Complex PTSD is a diagnosis in the World Health Organization's ICD-11. DSM-5-TR has PTSD, including a dissociative subtype, but no separate complex PTSD diagnosis.

Related guides

This page is educational and does not replace an assessment by a professional. If you may hurt yourself or cannot stay safe, find crisis support now. How our content and tests are made · Written by Tyr, founder and editor