Somatization Disorder (Somatic Symptom Disorder)

What somatic symptom disorder is

In the DSM-5-TR, somatic symptom disorder is diagnosed when someone has:

1. one or more physical symptoms that are distressing or disrupt daily life
2. excessive thoughts, feelings or behaviors related to the symptoms, shown by at least one of: - persistent, disproportionate thoughts about how serious the symptoms are - persistently high anxiety about symptoms or health - excessive time and energy devoted to symptoms or health concerns
3. a duration of at least 6 months, although specific symptoms may change

This replaced the older "somatization disorder", which required a long list of unexplained symptoms. The newer definition focuses on how the person experiences and responds to symptoms, not on whether they have a medical explanation.

How it feels

• persistent symptoms, often pain, fatigue, nausea, bloating, headaches or dizziness
• constant worry that symptoms mean a serious illness
• frequent checking of the body or researching symptoms online
• repeated visits to doctors, tests and specialists
• feeling that doctors are missing something
• avoiding activity for fear of making symptoms worse
• difficulty working, studying or socializing

Related conditions

Causes and risk factors

There is no single cause. Contributing factors include:

• heightened sensitivity to body sensations, and a tendency to interpret them as signs of harm
• anxiety and depression, which often coexist
• childhood adversity, trauma or abuse
• chronic illness in the person or family during childhood
• stress, which amplifies physical symptoms through the nervous and hormonal systems
• learned patterns, such as receiving more care or attention when ill
• genetic factors

Diagnosis

There is no single test. A doctor will:

• take a thorough history and examine you
• order appropriate tests to look for medical causes, guided by symptoms rather than repeating every test
• ask about mood, anxiety, stress and life circumstances
• use questionnaires such as the PHQ-15 for physical symptoms and screening tools for depression and anxiety

Diagnosis is based on the pattern of distress and behavior, not simply on normal test results. Somatic symptom disorder can coexist with real medical conditions.

Treatment

A steady relationship with one doctor

• regular, scheduled appointments with a primary care doctor, rather than visits only when symptoms flare
• a brief physical exam at each visit, with tests only when new findings appear
• coordination of care to avoid duplicate tests and procedures

Psychological therapy

• cognitive behavioral therapy (CBT): the best-studied treatment. It helps change unhelpful beliefs about symptoms, reduce checking and reassurance-seeking, and gradually increase activity
• mindfulness-based therapies and acceptance and commitment therapy
• stress management and relaxation training

Medicines

• antidepressants (SSRIs, SNRIs, or low-dose tricyclics) can reduce pain and associated depression and anxiety
• avoiding unnecessary opioids, sedatives and procedures, which can cause harm

Self-help

• set achievable activity goals and increase them gradually
• limit symptom searching online
• keep a diary of symptoms, activities and stress to spot patterns
• prioritize sleep, regular exercise and social contact

Outlook

Somatic symptom disorder is often long-lasting but can improve substantially with consistent care and therapy. Many people learn to manage symptoms and regain function, even if some symptoms persist. Treating coexisting depression and anxiety improves outcomes.

Frequently asked questions

What is somatization disorder?

Somatization disorder is an older term for somatic symptom disorder, in which a person has real, distressing physical symptoms along with excessive worry, thoughts and time spent on them, lasting at least 6 months. It is a recognized mental health condition, not faking.

Are somatic symptoms real?

Yes. The pain, fatigue, dizziness or stomach symptoms are genuinely experienced. The brain and nervous system influence how strongly sensations are felt, and stress and anxiety can amplify them. Treatment aims to reduce both the symptoms and the distress.

What is the difference between somatic symptom disorder and illness anxiety disorder?

In somatic symptom disorder, physical symptoms are prominent and cause distress. In illness anxiety disorder, a person has few or mild symptoms but is intensely worried about having or developing a serious illness.

How is somatic symptom disorder treated?

Treatment includes regular scheduled visits with one primary care doctor, cognitive behavioral therapy, treatment of depression and anxiety, sometimes antidepressants, and a gradual return to normal activities. Unnecessary tests and procedures are avoided.

Can stress cause physical symptoms?

Yes. Stress activates the nervous and hormonal systems, which can cause headaches, muscle tension, stomach upset, palpitations, fatigue and sleep problems. In somatic symptom disorder, these effects combine with heightened attention and worry about the body.