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Somatization Disorders refer to psychological conditions in which emotional distress manifests primarily as physical (somatic) symptoms, often without a fully explanatory medical cause, or with symptoms far more intense than expected from medical findings.

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1. Somatic Symptom Disorder (SSD)

This is could be the main modern diagnosis.

Core Features:

• One or more distressing physical symptoms (pain, fatigue, GI issues, neurological complaints, etc.)
• Excessive thoughts, anxiety, or behaviors related to the symptoms
• Persistent distress (typically >6 months)

The key shift in DSM-5:
It’s not about whether symptoms are medically unexplained.
It’s about the disproportionate psychological response to them.

A person may:

• Doctor-shop frequently
• Catastrophize normal sensations
• Spend excessive time thinking about illness
• Experience severe health anxiety

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2. Illness Anxiety Disorder

Previously called hypochondriasis.

Core Features:

• Minimal or no somatic symptoms
• Intense fear of having or developing a serious illness
• High health-related anxiety
• Repeated checking or medical reassurance-seeking

The focus is fear of illness, not symptom burden.

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3. Conversion Disorder

Now called Functional Neurological Symptom Disorder.

Core Features:

• Neurological symptoms incompatible with known medical conditions
• Examples:
  • Paralysis
  • Non-epileptic seizures
  • Blindness
  • Speech disturbances

Symptoms are not intentionally produced.
They often follow psychological stress or trauma.

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4. Factitious Disorder

Different from somatization.

Here, symptoms are intentionally fabricated or induced, but for psychological reasons (need for attention, identity as patient), not external gain.

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Psychological Mechanisms

Somatization often involves:

1. Interoceptive amplification

Heightened sensitivity to normal bodily sensations.

2. Alexithymia

Difficulty identifying and expressing emotions.

3. Trauma-linked dissociation

Emotional material converted into bodily experience.

4. Chronic autonomic dysregulation

Persistent sympathetic activation (fight–flight–freeze) manifesting somatically.

This aligns with how the body processes unresolved stress biologically (as we discussed previously).

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Neurobiology

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The body might literally encodes distress.

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Common Symptom Clusters

• Chronic pain
• Fatigue
• Gastrointestinal distress
• Sexual dysfunction
• Pseudoneurological symptoms
• Cardiovascular sensations (palpitations, chest tightness)

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Clinical Differentiation

Important distinction:

Somatization is:

• Not malingering
• Not “imaginary”
• Not voluntary

The suffering is real.
The mechanism is psychophysiological.

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Treatment Approaches

Possible Evidence-based treatments include:

• CBT for somatic symptom disorder
• Trauma-informed therapy
• Psychodynamic approaches (symbolization of affect)
• Mindfulness-based stress reduction
• Somatic experiencing
• Regulation of autonomic nervous system

Medication may help if comorbid:

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• Depression
• Anxiety
• PTSD

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Clinical Insight

In trauma-heavy cases, somatization can function as:

• A nonverbal language of distress
• A defense against overwhelming affect
• A way to maintain attachment (through care-seeking)

In dissociative structures, symptoms may emerge from split-off self-states.

Shervan K Shahhian