Undifferentiated Somatoform Disorder

Undifferentiated somatoform disorder occurs when a person has physical complaints for more than six months that cannot be attributed to a medical condition. If there is a medical condition present, the complaints must be far more severe than can be accounted for by the presence of the medical problem.


Cluster Number:
Wiki Number: PW222
Diagnosis: Undifferentiated Somatoform Disorder
US Patients:
World Patients:
Sex Ratio:
Age Onset:
Brain Area:
Symptoms: This is a less-specific version of the somatiaation disorder that requires only a 6-month-long history of one or more unexplained
Progression: physical complaints in addition to other requisite clinical criteria.

Youtube Video:

Dr. James Amos’s Dirty Dozen on Somatoform Disorders

Amazon or Library Book:

Reversing Undifferentiated Somatoform Disorders Success Stories, Part 2

Click the book to link or order from Amazon.


The world-wide medical research
reports chosen for each diagnosis 

Clicking each title opens the
PubMed article’s summary-abstract.

  • Somatic Syndrome Disorders
    by Ryan S. D'Souza on January 1, 2023

    Somatic symptom disorder (SSD) is a recently defined diagnosis in the Diagnostic and Statistical Manual of Mental Disorders, fifth edition (DSM-5). It is the manifestation of one or more physical symptoms accompanied by excessive thoughts, emotion, and/or behavior related to the symptom, which causes significant distress and/or dysfunction. These symptoms may or may not be explained by a medical condition. The two major changes to the DSM-IV criteria included eliminating the requirement that...

  • Reversible splenial lesion syndrome with mental disorders as only manifestation
    by Ziyun Xu on September 16, 2021

    CONCLUSIONS: We found that RESLES might only showed mental symptoms. On the one hand, for the patients with acute mental disorders, clinicians should be alert to the possibility of RESLES caused by physical disease. On the other hand, we suggest that mental disorder might be a precipitating factor of RESLES.

  • Briquet syndrome revisited: implications for functional neurological disorder
    by Julie Maggio on January 11, 2021

    With the creation of the Somatic Symptom and Related Disorders category of the Diagnostic and Statistical Manual of Mental Disorders, Fifth Edition in 2013, the functional neurological (symptom) disorder diagnostic criteria underwent transformative changes. These included an emphasis on 'rule-in' physical examination signs/semiological features guiding diagnosis and the removal of a required proximal psychological stressor to be linked to symptoms. In addition, the Diagnostic and Statistical...

  • Criteria positive and criteria negative anaphylaxis, with a focus on undifferentiated somatoform idiopathic anaphylaxis: A review and case series
    by Daniel A Rosloff on October 28, 2020

    Background: Undifferentiated somatoform (US) idiopathic anaphylaxis (IA) is considered a psychogenic disorder characterized by a lack of observable physical findings and poor response to treatment. Although failure to diagnose true anaphylaxis can have disastrous consequences, identification of US-IA is crucial to limit unnecessary expenses and use of health care resources. Objective: To better define the presentation and understand the potential relationship between US-IA and underlying...