Can DID symptoms go dormant and return later?

What are we calling dormant?

Someone can go years without obvious switching, then notice old patterns during a loss, an accident, a family milestone, or a period of heavy stress. Did the disorder return? Was it there all along?¹²

The word “dormant” can cover several different experiences. An identity state may stop taking control. Several states may share enough information that changes no longer leave obvious traces. Overt symptoms may settle while memory gaps, internal voices, depersonalization, or actions that do not feel self-authored continue. Symptoms may also remit for a time. Research has not established that all of these are the same process.¹²

I started with a paper that addresses the question directly: Richard Kluft's 1991 Clinical Presentations of Multiple Personality Disorder. “Multiple personality disorder” was the name used at the time. Kluft was describing the condition now called DID.¹

One life, two long quiet stretches

Kluft's paper arranges presentations he had encountered in practice and in the earlier literature, asking why the most recognisable version of the disorder appeared so rarely.¹

One case is especially relevant. Kluft described an accomplished health professional whose dissociation had been overt in adolescence but was not overt from ages 16 to 29 or from 29 to 59.¹ Her diagnosis emerged unexpectedly near the planned end of therapy.

That history resembles what people usually mean when they ask about dormancy: a condition that had once been visible, decades in which it was not, and a later return. It remains one clinical case. We do not know how much continued outside her awareness, what other symptoms remained, or how often this course occurs.¹

Where Kluft's account came from

Six years earlier, Kluft had written a longer chapter about the natural history of the disorder. He said his observations included 210 people he had interviewed himself, along with patients who declined treatment and returned anywhere from several months to more than a decade later.³

While this paper has a lot of weight to it, there are some shortcomings worth mentioning. The case-finding work was not formally published, participants were not assessed on one schedule, and there was no comparison group. The cases show that Kluft saw this pattern more than once, but they don't tell us how common it was.³

The language in these papers also belongs to its time. Kluft used labels such as “latent MPD” for infrequent stress-related appearances, “posttraumatic MPD” when a later event made a previously covert condition visible, and “epochal” or “sequential MPD” when one state remained dominant while others became inactive.¹ Keep in mind these are historical descriptions that don't map onto DSM or ICD subtypes.

Quiet does not always mean absent

The most useful part of Kluft's argument is the distinction between having no outward signs and having no dissociative activity. He described people whose identity states shared current information, pursued common goals, or kept changes concealed well enough to pass as one for long periods.¹

That makes “dormant” an imperfect word. A quiet presentation may reflect fewer symptoms. It may also reflect cooperation, concealment, one state remaining in control, or signs that nobody recognised. Looking stable from the outside does not reveal which of those is happening.¹

When stress changes what is visible

Kluft observed that later trauma and stress could make identity changes more overt, particularly when the new situation resembled an earlier danger or loss.¹ Sometimes the change was brief. In other cases, the person did not return to the earlier, quieter arrangement.

A 2025 case series offers a more recent example, though not a clean test of dormancy. Clinicians working after the 2023 earthquakes in Türkiye identified 16 clients with DID and reported increased identity-state activity after the disaster, with newly apparent states in several cases.⁴

The study began after the earthquake, so there was no research baseline showing what each person was like before it. The clinicians did not use a structured diagnostic interview, 11 of the 16 clients left before completing therapy, and the number reported as having changed is not consistent across the abstract, table, and main text.⁴ I would not use it to estimate how often stress brings symptoms back. It does show the kind of change that deserves better prospective research.

What current ICD-11 guidance says

WHO's current clinical guidance describes DID as having a “recurrent and fluctuating clinical course.”² It says symptoms may remit spontaneously with age and recur during periods of increased stress. The same page notes that older adults may present with what looks like late-life paranoia, cognitive impairment, or atypical mood, psychotic, or obsessive-compulsive symptoms.²

WHO includes this pattern in its current clinical guidance. The manual gives no estimate for how often symptoms return, how long quiet periods tend to last, or who is most likely to experience them.²

Recurrence after treatment

One small follow-up study looked at a different version of the question. Coons and Bowman began with 25 people diagnosed with DID; 12 provided information ten years later. Six had achieved what the authors called full integration, and two of those six later dissociated into identity states again.⁵

This shows that recurrence after apparent treatment resolution can happen. It does not tell us about spontaneous dormancy, and losing more than half of the original group makes broad conclusions impossible.⁵

What we can actually say

DID can become less visible for a long time and later become more obvious. Current guidance also recognises remission followed by recurrence during stress. The clearest detailed accounts are clinical; no strong modern prospective study has followed a large group from active symptoms, through years of spontaneous remission, and into recurrence.¹²

So the answer is yes, with some unfinished business. We cannot yet say how common this course is, how long a quiet period usually lasts, or whether symptoms had disappeared rather than changed form. A return of unusual experiences after years of stability also deserves a fresh assessment. Neurological conditions, medication or substance effects, sleep problems, and other psychiatric conditions can produce changes in memory, identity, or perception that need their own attention.⁶

Kluft, R. P. (1991). Clinical presentations of multiple personality disorder. Psychiatric Clinics of North America, 14(3), 605-629. pp. 613 and 621-622. Clinical descriptions of long covert periods, stress-related recurrence, and historical presentation types. These observations are not a prospective prevalence study. ↩ ↩² ↩³ ↩⁴ ↩⁵ ↩⁶ ↩⁷ ↩⁸ ↩⁹ ↩¹⁰ ↩¹¹
World Health Organization. (2024). Clinical descriptions and diagnostic requirements for ICD-11 mental, behavioural and neurodevelopmental disorders. p. 384, Course features and Developmental presentations. Current clinical guidance describing DID as recurrent and fluctuating, possible symptom recurrence during increased stress, and presentations that may appear to begin in later life. ↩ ↩² ↩³ ↩⁴ ↩⁵ ↩⁶
Kluft, R. P. (1985). The natural history of multiple personality disorder. In R. P. Kluft (Ed.), Childhood antecedents of multiple personality (pp. 197-238). American Psychiatric Press. pp. 199, 203, 224-225, and 235. Natural-history observations from personally interviewed cases and patients who returned after declining treatment; the chapter does not describe a standardized prospective follow-up protocol. ↩ ↩²
Uysal, B., Tepedelen, M. S., Kablama-Yardım, Z. Z., Akyüz, E., Bircan, F. B., Cinisli, M. F., & Yanık, M. (2025). What happens to DID clients after an earthquake: A case series. European Journal of Trauma & Dissociation, 9(3), 100586. Abstract, Table 2, pp. 5-7. Post-earthquake case series of 16 clients. The paper reports increased identity-state activity but lacks a pre-disaster baseline or structured diagnostic interviews, and its reported counts are not fully consistent across sections. ↩ ↩²
Coons, P. M., & Bowman, E. S. (2001). Ten-year follow-up study of patients with dissociative identity disorder. Journal of Trauma & Dissociation, 2(1), 73-89. Abstract and ten-year follow-up results. Twelve of the original 25 patients provided follow-up data; two of six who had achieved full integration later dissociated into identity states again. ↩ ↩²
International Society for the Study of Trauma and Dissociation. (2011). Guidelines for treating dissociative identity disorder in adults, third revision. Journal of Trauma & Dissociation, 12(2), 115-187. pp. 128-130. Differential diagnosis and common sources of diagnostic confusion. ↩