Explosive anger.

If you have BPD, you may struggle with intense anger and a short temper. You may also have trouble controlling yourself once the fuse is lit—yelling, throwing things, or becoming completely consumed by rage. It’s important to note that this anger isn’t always directed outwards. You may spend a lot of time feeling angry at yourself.

HelpGuide.org

Inappropriate, intense anger or problems controlling anger.

NIMH

Inappropriate, intense anger, such as frequently losing your temper, being sarcastic or bitter, or having physical fights.

Mayo Clinic

Inappropriate, intense or uncontrollable anger—often followed by shame and guilt.

NAMI

This is one of nine symptoms used to diagnose borderline personality disorder. Many of these symptoms are common to other disorders and you should seek professional guidance if you are concerned about a diagnosis.