The development of Dissociative Identity Disorder (DID) or Other Specified Dissociative Disorder (OSDD) is associated with severe and chronic trauma, typically occurring during early childhood. However, there is no strict rule that trauma must occur at a particular age for these conditions to develop.
The key factor in the development of DID/OSDD is the individual's coping mechanism to deal with overwhelming and ongoing trauma, especially during a vulnerable developmental stage when the sense of self is still forming. While early childhood trauma is more commonly linked to the development of DID/OSDD, trauma at later ages can also potentially lead to the formation of dissociative identities.
Each person's experience is unique, and the way they cope with trauma can vary. Some individuals may have experienced traumatic events before the age of 8 and developed alters, while others might have developed alters in response to trauma occurring at a later age.
It's essential to understand that the process of forming dissociative identities is complex and multifaceted. It involves various psychological and biological factors, and not all individuals who experience trauma will develop DID or OSDD.
If you or someone you know is dealing with trauma-related issues or dissociative symptoms, seeking support from a qualified mental health professional, particularly one experienced in trauma and dissociative disorders, is crucial for assessment, diagnosis, and appropriate treatment. A therapist can provide guidance and support tailored to the individual's specific needs and experiences.