Yes, someone with Dissociative Identity Disorder (DID), which was previously known as multiple personality disorder, can develop new alters at a later time. The presence of multiple alters is a defining characteristic of DID, and the number and complexity of alters can vary from person to person. New alters may emerge in response to various factors, such as ongoing stress, trauma, or life changes.
The development of new alters in DID is generally considered a manifestation of the mind's ongoing coping mechanisms to deal with distress and overwhelming experiences. When a person faces additional traumatic events or significant stressors, the dissociative process can create new alters as a way to compartmentalize and manage these distressing experiences. These new alters may embody different aspects of the person's psyche and may have unique roles and functions within the system.
It's essential to recognize that the process of developing new alters can be distressing and disruptive to the individual's life. The appearance of new alters may lead to memory gaps and challenges in day-to-day functioning, as each alter may have distinct memories and experiences.
Therapy plays a crucial role in helping individuals with DID understand and navigate the emergence of new alters. A skilled therapist experienced in treating dissociative disorders can work with the person to explore the underlying trauma, improve communication between alters, and promote integration and cooperation within the system. The ultimate goal of therapy is to help the person manage their condition, minimize distress, and improve their overall well-being.