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Functional (somatic) symptom disorder

Perturbatio somatoformis · Funkční (somatická) porucha

What it is

Real, distressing bodily symptoms — pain, fatigue, weakness — without structural disease, sustained by how the brain processes signals and by worry.

Symptoms & signs

  • Persistent pain, fatigue or dizziness
  • many tests without an answer
  • high health anxiety
  • symptoms that move or change
  • disability out of proportion

🚩 Get help if…

  • call 112 / 911 now Thoughts of ending your life
  • see a doctor soon New symptom that is different, such as weight loss or bleeding
  • see a doctor soon Symptoms stopping you working or leaving home
  • see a doctor soon Taking more and more painkillers

Where it strikes

Medical treatment

  • One trusted doctor and limited testing
  • explanation of the brain–body mechanism
  • cognitive behavioural therapy
  • physiotherapy for functional movement symptoms
  • antidepressants for pain

Natural & lifestyle

  • Graded activity
  • sleep routine
  • stress management

Emerging & experimental

  • Neuromodulation
  • psychologically informed physiotherapy programmes

Alternative, off-label & anecdotal

Approaches used outside the guidelines, with what their supporters report and what testing has found so far.

  • Mindfulness — trials reduce the symptom burden early / small studies
  • Yoga and tai chi — small trials early / small studies
  • Detox and elimination diets — anecdotal anecdotal / traditional

ICD codes