ConditionMental health & sleep
Somatic Symptom Disorder
Somatic symptom disorder (SSD) is a mental health condition in which a person has one or more physical symptoms, such as pain, fatigue or digestive problems, together with excessive thoughts, worry or behavior about them that cause major distress or disruption. The symptoms are real and are not faked, and they may or may not have a medical explanation. What defines SSD is the disproportionate response. Cognitive behavioral therapy and a steady relationship with one primary care doctor help most.
Also called: SSD, somatization disorder (older term), somatoform disorder (older term)
At a glance
- What it is
- Distressing physical symptoms plus excessive, persistent thoughts, worry or behavior about them.
- How common
- About 5 to 7% of adults.
- Key point
- The symptoms are real. They may or may not have an identified medical cause.
- Duration
- Symptomatic state typically lasts more than 6 months.
- Often occurs with
- Anxiety, depression, chronic pain, IBS, fibromyalgia.
- Treatment
- CBT, regular scheduled visits with one clinician, treating anxiety and depression, graded activity.
When to get help
Call 911 or go to the ER
- Thoughts of suicide or self-harm. Call or text 988 (US) or call 911
- New sudden symptoms such as chest pain, weakness on one side, severe headache or difficulty breathing, which always need medical assessment
See a doctor within a day or two
- New or changing symptoms that are different from your usual pattern
- Severe anxiety, panic or inability to function
Book a routine appointment
- Physical symptoms that cause intense worry and take up a lot of time and energy for 6 months or more
- Repeated medical tests and doctor visits without reassurance
- Low mood or anxiety alongside persistent physical symptoms
Usually safe to manage at home
- Gradually returning to normal activities, regular exercise and sleep routines as part of a treatment plan
What somatic symptom disorder is
Everyone experiences physical sensations and symptoms. In SSD, the symptoms become the focus of life. The DSM-5-TR criteria are:
- One or more somatic symptoms that are distressing or significantly disrupt daily life
- Excessive thoughts, feelings or behaviors related to the symptoms, shown by at least one of: - disproportionate and persistent thoughts about the seriousness of symptoms - persistently high anxiety about health or symptoms - excessive time and energy devoted to symptoms or health concerns
- Persistence: a symptomatic state typically lasting more than 6 months, even if specific symptoms change
SSD can coexist with a diagnosed medical condition, such as heart disease or cancer, when the response to it is disproportionate.
Symptoms
Common physical symptoms include:
- pain, such as headaches, back pain, joint pain or abdominal pain
- fatigue and weakness
- digestive problems: nausea, bloating, diarrhea
- breathlessness, palpitations and dizziness
Common thoughts and behaviors include:
- interpreting normal sensations as signs of serious illness
- fear that physical activity will cause harm
- frequent checking of the body or searching symptoms online
- seeking many medical opinions and tests, or, in some people, avoiding care out of fear
- feeling that doctors do not take symptoms seriously
- significant disability relative to findings
Causes and risk factors
SSD arises from a combination of factors:
- biological: heightened sensitivity to body sensations and pain processing differences
- psychological: anxiety, depression, a tendency to worry, past trauma, including childhood trauma
- social: stressful life events, learned behavior from family illness, limited social support
- medical: a previous serious illness or a chronic condition
It is more common in women and people with lower education or income.
Related conditions
| Condition | Key difference |
|---|---|
| Illness anxiety disorder | Fear of having a serious illness with few or no physical symptoms |
| Conversion disorder (functional neurological disorder) | Neurological symptoms such as weakness, seizures or numbness not explained by disease |
| Generalized anxiety disorder | Worry about many areas of life, not focused on symptoms |
| Depression | Low mood and loss of interest. Often coexists |
| Factitious disorder | Deliberately faking or causing symptoms. SSD symptoms are not faked |
Diagnosis
A doctor will take a thorough history and examination and arrange appropriate tests to look for medical causes, without excessive repeated testing. A mental health evaluation explores the thoughts, feelings and behaviors around symptoms, and screens for anxiety and depression using questionnaires such as the PHQ-15.
Treatment
A consistent care relationship
Seeing one primary care clinician for regular, scheduled visits, rather than only when symptoms flare, helps reduce emergency visits and unnecessary tests. The clinician acknowledges the reality of symptoms and coordinates care.
Cognitive behavioral therapy (CBT)
The most effective treatment. CBT helps people:
- understand the links between thoughts, attention, stress and physical symptoms
- reduce checking and reassurance-seeking
- gradually return to avoided activities
- develop coping skills for distress
Mindfulness-based approaches and acceptance and commitment therapy (ACT) also help.
Medicines
Antidepressants such as SSRIs or SNRIs can help when anxiety, depression or chronic pain coexist.
Lifestyle
Regular physical activity, sleep routines, stress management and staying engaged with work and social life support recovery.
Outlook
SSD can be long-lasting, but many people improve with treatment, especially when started early and when anxiety or depression is treated. The goal is reducing distress and improving function, even if some symptoms remain.
Frequently asked questions
What is somatic symptom disorder?
It is a condition in which physical symptoms such as pain or fatigue are accompanied by excessive worry, thoughts or behaviors about them that cause major distress or disruption. The symptoms are real, and they may or may not have a medical explanation.
Are the symptoms in somatic symptom disorder real?
Yes. People with SSD genuinely feel their symptoms. The disorder is defined by the disproportionate distress and impact, not by the symptoms being imaginary or faked.
What is the difference between somatic symptom disorder and illness anxiety disorder?
In SSD, people have prominent physical symptoms and are distressed by them. In illness anxiety disorder, people have few or mild symptoms but are intensely afraid of having or developing a serious illness.
How is somatic symptom disorder treated?
Cognitive behavioral therapy is the most effective treatment. Regular scheduled visits with one primary care doctor, treatment of anxiety or depression, sometimes with antidepressants, and gradual return to normal activities also help.
Can anxiety cause physical symptoms?
Yes. Anxiety can cause a racing heart, chest tightness, breathlessness, stomach upset, headaches, muscle tension and fatigue. New or changing symptoms should still be assessed by a doctor to rule out medical causes.
Sources
This guide was written from current patient and clinical guidance, including:
- American Psychiatric Association: DSM-5-TR, Somatic Symptom and Related Disorders
- American Academy of Family Physicians: Somatic Symptom Disorder (2016)
- MedlinePlus: Somatic symptom disorder
- NHS: Medically unexplained symptoms
- Cleveland Clinic: Somatic Symptom Disorder