What are the somatic symptoms and related disorders?

Conversion disorder and somatic symptom disorder are both categorized as somatic symptom and related disorders (previously termed somatoform disorders).

Somatic symptom and related disorders are psychiatric conditions where patients experience distressing physical symptoms associated with abnormal thoughts, feelings, and behaviors in response to these symptoms. They may result from psychological stress that is unconsciously (without awareness) expressed somatically, though the underlying cause is not fully understood.

Risk factors include being female, having a history of abuse or adverse childhood events, and having personality traits of alexithymia (difficulty expressing emotions) or neuroticism. Symptoms that persist with an external focus of control, and without awareness of the psychological and stress-related interplay, can lead to considerable functional impairment and distress.

Diagnosis is made by clinical interview, behavioral observation, physical exam suggestive of pseudoneurologic causes, and tests to rule out medical or neurologic causes. The diagnosis should not be made solely on the basis of medically unexplained symptoms; rather, it should be based on evidence from the clinical exam and the patient’s abnormal thoughts, feelings, and behaviors in response to the medically unexplained symptoms.

Good doctor-patient relationships and validation of the patient's suffering are essential for effective management. Treatment includes cognitive behavioral therapy, physical therapy, and avoiding unnecessary medicines, tests, and procedures. Diagnosis and treatment of associated comorbid psychiatric conditions benefit overall functioning and recovery.

Long-term management involves interrupting perpetuating factors, maintaining the same doctor, and providing strategies for self-efficacy, distress tolerance, coping, and modulating the interaction of anxiety, stress, and physical symptoms.

Conversion disorder and somatic symptom disorder are psychiatric conditions that fall under the somatic symptom and related disorders category of the DSM-5-TR (previously termed somatoform disorders). Somatic symptom and related disorders are those with prominent physical symptoms associated with significant distress and impairment of function.

Conversion disorder is characterized by voluntary motor or sensory function deficits that suggest neurologic or medical conditions but are rather associated with clinical findings that are not compatible with such conditions. Somatic symptom disorder is characterized by one or more somatic symptoms that are distressing or result in significant disruption of daily life. To meet DSM-5-TR criteria, these patients must have excessive thoughts, feelings, or behaviors related to the somatic symptoms or associated health concerns as manifested by at least one of the following: disproportionate and persistent thoughts about the seriousness of one’s symptoms; persistently high levels of anxiety about health or symptoms; excessive time or energy devoted to these symptoms or health concerns. Importantly, even if any one somatic symptom is not continuously present, the state of being symptomatic is persistent (typically more than 6 months).

Somatic symptom disorder (SSD formerly known as "somatization disorder" or "somatoform disorder") is a form of mental illness that causes one or more bodily symptoms, including pain. The symptoms may or may not be traceable to a physical cause including general medical conditions, other mental illnesses, or substance abuse. But regardless, they cause excessive and disproportionate levels of distress. The symptoms can involve one or more different organs and body systems, such as:

  • Pain
  • Neurologic problems
  • Gastrointestinal complaints
  • Sexual symptoms

Many people who have SSD will also have an anxiety disorder.

People with SSD are not faking their symptoms. The distress they experience from pain and other problems they experience are real, regardless of whether or not a physical explanation can be found. And the distress from symptoms significantly affects daily functioning.

Doctors need to perform many tests to rule out other possible causes before diagnosing SSD.

The diagnosis of SSD can create a lot of stress and frustration for patients. They may feel unsatisfied if there's no better physical explanation for their symptoms or if they are told their level of distress about a physical illness is excessive. Stress often leads patients to become more worried about their health, and this creates a vicious cycle that can persist for years.

Several conditions related to SSD are now described in psychiatry. These include:

  • Illness Anxiety Disorder (formerly called Hypochondriasis). People with this type are preoccupied with a concern they have a serious disease. They may believe that minor complaints are signs of very serious medical problems. For example, they may believe that a common headache is a sign of a brain tumor.
  • Conversion disorder (also called Functional Neurological Symptom Disorder). This condition is diagnosed when people have neurological symptoms that can't be traced back to a medical cause. For example, patients may have symptoms such as:
    • Weakness or paralysis
    • Abnormal movements (such as tremor, unsteady gait, or seizures)
    • Blindness
    • Hearing loss
    • Loss of sensation or numbness
    • Seizures (called nonepileptic seizures and pseudoseizures) 

Stress usually makes symptoms of conversion disorder worse.

  • Other Specific Somatic Symptom and Related Disorders. This category describes situations in which somatic symptoms occur for less than six months or may involve a specific condition called pseudocyesis, which is a false belief women have that they are pregnant along with other outward signs of pregnancy, including an expanding abdomen; feeling labor pains, nausea, fetal movement; breast changes; and cessation of the menstrual period.

Treatment of Somatic Symptom Disorders

Patients who experience SSD may cling to the belief that their symptoms have an underlying physical cause despite a lack of evidence for a physical explanation. Or if there is a medical condition causing their symptoms, they may not recognize that the amount of distress they are experiencing or displaying is excessive. Patients may also dismiss any suggestion that psychiatric factors are playing a role in their symptoms.

A strong doctor-patient relationship is key to getting help with SSD. Seeing a single health care provider with experience managing SSD can help cut down on unnecessary tests and treatments.

The focus of treatment is on improving daily functioning, not on managing symptoms. Stress reduction is often an important part of getting better. Counseling for family and friends may also be useful.

Cognitive behavioral therapy may help relieve symptoms associated with SSD. The therapy focuses on correcting:

  • Distorted thoughts
  • Unrealistic beliefs
  • Behaviors that feed the anxiety

Somatic symptom disorder involves a person having persistent body-related symptoms which may or may not be related to any serious medical condition. People with this disorder tend to be overly preoccupied with their symptoms and they continually worry about their health and make frequent visits to doctors.

What are the 6 somatic symptom disorders?

They include somatization disorder, undifferentiated somatoform disorder, hypochondriasis, conversion disorder, pain disorder, body dysmorphic disorder, and somatoform disorder not otherwise specified. These disorders often cause significant emotional distress for patients and are a challenge to family physicians.

How many somatic symptom disorders are there?

There are seven types of somatoform disorders where individuals present with a multitude of clinically significant symptoms that cannot be explained, including: Somatization disorder. Conversion disorder. Pain disorder.