Definition and DSM-5 criteria
Somatic symptom disorder (SSD) is defined by one or more distressing somatic symptoms coupled with excessive and maladaptive thoughts, feelings or behaviours about those symptoms or about health. The DSM-5 shift was decisive: the diagnosis is positive, resting on the patient’s disproportionate psychological response, and no longer requires the symptom to be medically unexplained. A child with a verified medical illness can also meet SSD criteria if their reaction is disproportionate.
The DSM-5 criteria are:
- Criterion A — one or more somatic symptoms that are distressing or cause significant disruption of daily life.
- Criterion B — excessive thoughts, feelings or behaviours related to the somatic symptoms or associated health concerns, shown by at least one of: (1) disproportionate and persistent thoughts about the seriousness of the symptoms; (2) persistently high anxiety about health or symptoms; (3) excessive time and energy devoted to the symptoms or health concerns.
- Criterion C — although any one somatic symptom may not be continuously present, the symptomatic state is persistent (typically more than 6 months).
Specifiers include with predominant pain, persistent, and severity (mild/moderate/severe).
Clinical features
In children and adolescents the commonest presentations are recurrent abdominal pain, headache, fatigue, dizziness, and limb or chest pain. Symptoms are genuinely experienced and genuinely disabling — school absence, withdrawal from sport and peers, and repeated, escalating investigation are typical. Look for high health-related anxiety in the child or parent, a pattern of multiple specialist referrals, and amplification of normal bodily sensations. Comorbid anxiety and depression are common and bidirectional. The disorder clusters in families and may follow an acute illness or a psychosocial stressor.
Diagnosis
SSD is a positive clinical diagnosis, not a diagnosis of exclusion — though a focused, time-limited work-up is needed to exclude serious organic disease before committing. The diagnostic weight sits on Criterion B: the disproportionate cognitive, affective and behavioural response, not on whether every symptom is explained. Avoid the trap of endless re-investigation, which reinforces illness behaviour. A single, named, trusted clinician coordinating care reduces fragmentation.
See the full criteria: Somatic Symptom Disorder
Red flags
- New focal neurological signs, weight loss, fever, night pain, or organomegaly — re-investigate for organic disease
- Acute, progressive or nocturnal symptoms that wake the child from sleep
- Symptoms incongruent with the child’s account but consistent with a caregiver’s narrative — consider factitious disorder imposed on another
- Self-harm, suicidality, or severe functional collapse — urgent mental-health referral
- Rapidly escalating, invasive investigations driven by caregiver insistence
Management overview
The first therapeutic act is validation: state clearly that the symptoms are real and distressing — never “it’s all in your head” or “there’s nothing wrong.” Explain the mind-body link in concrete, non-stigmatising terms (e.g. stress amplifying gut or pain signals). Management is multidisciplinary and function-first: a single coordinating clinician, scheduled (not symptom-driven) reviews, and a rehabilitative goal of restoring function — return to school, sleep, and activity — rather than eliminating every symptom.
Core elements include cognitive-behavioural therapy, graded activity, sleep and stress management, and family work, since parental health anxiety often maintains the cycle. Treat comorbid anxiety or depression on their own merits. Set firm limits on repeat investigations, agreed in advance with the family. Pharmacotherapy is adjunctive and directed at comorbidities by a child mental-health specialist. Outcomes in children are generally good with early, consistent, validating care.
References
- American Psychiatric Association. DSM-5-TR. 2022.
- D’Souza RS, Hooten WM. Somatic Symptom Disorder. StatPearls. 2024.
- Malas N, et al. Pediatric Somatic Symptom and Related Disorders. Pediatrics. 2017;139(3):e20162348.
Decision support for qualified clinicians only — verify against current primary guidelines and your clinical judgement.