Trauma

According to Katherine Fauvre^[1]

Trauma does not change your Enneagram Type, Tritype, or Subtype, as they are inborn and govern how you perceive, defend, and manage your reality.

Trauma can, however, cause conscious and/or unconscious emotional patterns of distress such as fear, anxiety, anger, shock, sadness, and/or grief. These emotional patterns can be reactive and excessive, emotionally flat and shut down, and/or everything in between. These reactions or lack thereof can mask your inner motivations or make it difficult for you to recognize the defense strategy you are using and why you are using it. This is largely due to misidentifications.

These misidentifications can happen with or without trauma.

References

[1] Fauvre K., Heartache, Trauma and Loss