Fatigue Fundamentals For Clinicians

Fatigue- Part 5

Please Note: The content on this page is evidence-based, backed by peer-reviewed citations, and tailored specifically for clinicians. It provides more detail than the introductory post, "Fatigue: The Top Unmet Need." Like all Sjogren’s Advocate content, this page is for educational purposes only and does not constitute medical advice.

Because Sjogren’s fatigue is complex and widely misunderstood, the "Sjogren’s Fatigue For Clinicians” posts are divided into three separate installments for ease of reading:

• Part A: Fundamentals (this post)

• Part B: Dismantling the Myths (upcoming)

• Part C: Assessment and Management (upcoming)

If you are reading a printed version of this page, you can access the interactive links and full citations by visiting the electronic version of this post in the blog section at www.sjogrensadvocate.com and entering the title of this post into the search bar.

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Fatigue Fundamentals Sjogren’s Fatigue Is

• often experienced as profound, uncontrollable exhaustion.  It is not normal tiredness that resolves with rest or lifestyle modifications.

“Fatigue is especially debilitating, overshadowing other symptoms in how much it disrupts patients’ ability to function, participate in daily activities, and maintain social commitments.” The Sjogren’s Foundation 2025 Living With Sjogren’s Survey

• the most common systemic symptom of Sjogren’s, impacting 70-96% of patients (26, 240, 279).  Fatigue is nearly ubiquitous in Sjogren’s, and just as fundamental to the disease as dryness (sicca).  Fatigue is not “benign”, not caused by sicca, or part of a “sicca syndrome”.   
  

• the leading cause of disability

  Fatigue, not sicca, is the leading cause of functional decline, job loss, reduced social participation, and impaired activities of daily living (198, 279).  Many people have to work fewer hours; 30-47% are forced to stop working entirely (47, 94).  On average, Sjogren’s patients experience more severe fatigue than those with lupus or rheumatoid arthritis (99, 281).

  
  

• a core biologically based, systemic feature of the disease. Fatigue is rooted in innate and adaptive immune system dysregulation, autonomic neuropathy, metabolic changes, direct systemic manifestations, and comorbidities.

“SjS may have diverse manifestations that can affect virtually any organ system and arise from multiple mechanisms not restricted to exocrine gland dysfunction and lymphocytic infiltration of other organs but also including hyperactivation of the adaptive and innate immune system.”  (285)         

Fatigue assessment and management must be incorporated into routine Sjogren's care. While addressing fatigue is challenging, much can be done, and clinical complexity is not an excuse for inaction. Understanding the gap between current clinical practice and actual patient needs is the first step toward addressing this major unmet need.

“Fatigue and cognitive dysfunction cause the greatest patient-reported disability and remain a massive unmet need, poorly addressed and validated.” — Vieira et al. (280)

Why Sjogren’s Fatigue Care Often Falls Short 1. Misunderstanding the Spectrum and Burden of Sjogren’s

Sjogren’s continues to be mischaracterized as a mild, sicca disease that only occasionally “progresses” to systemic disease. This outdated paradigm leads to debilitating systemic symptoms being psychologized or dismissed with functional labels, depriving patients of proper diagnosis and treatment.

In reality, Sjogren’s is a serious systemic disease.  The common belief that there is a sicca-limited version of the disease is not supported by current evidence. While dryness is common, it is just one of many features in a highly variable disease. In fact, systemic presentations without obvious or measurable sicca occur in an estimated 20% (232) and in more than 50% with early neurological involvement (202). If thoroughly evaluated, a large majority exhibit systemic features, even when limiting the assessment to the subset of manifestations defined by the European Sjogren’s Syndrome Disease Activity Index (ESSDAI) (38, 61,92, 278).

Unfortunately, a failure to study the primary drivers of fatigue is baked into the ESSDAI and other current research tools. Together, autonomic disorders and small fiber neuropathy (SFN) impact more than 50% of patients and are highly correlated with fatigue and loss of function (50, 199, 285). Yet these (along with gastrointestinal manifestations, cognitive dysfunction, and more) are routinely missed by clinicians and researchers, leading to a massive underestimate of the true systemic disease burden.

2. Expecting a Single, Universal Treatment

Because there is no single treatment for fatigue, management must systematically address the underlying causes of fatigue. This individualized process requires time and patience from both the clinician and the patient. Failing to recognize treatable systemic manifestations like dysautonomia or lung disease, or common comorbidities such as iron deficiency or thyroid disease, is a missed opportunity to improve patient quality of life and function. 3. Lack of Clinical Training

Rheumatologists are accustomed to managing challenging multisystem diseases. However, Sjogren’s medical education has long been inadequate; the training that is offered rarely addresses fatigue, other quality-of-life issues, or their underlying biological drivers. Medical education programs must change to address this shortfall. More CME programs—such as Optimizing Diagnosis and Care of Sjogren’s Disease: Real World Perspective From Patients and Clinicians—are urgently needed to close this gap in care.

Clinician Resources

• CME: Optimizing Diagnosis and Care of Sjogren’s Disease: Real World Perspective From Patients and Clinicians   Prime Inc, May 15, 2026

  Presenters: Dr. Frederick Vivino and Dr. Thomas Grader-Beck This program features data from a 2025 Quality of Life Survey completed by 828 Sjogren’s patients. Dr. Sarah Schafer of Sjogren's Advocate consulted on the survey's design and content. For more informaton: https://www.sjogrensadvocate.com/cme-clinican-educaton
  

• The Sjogren's Foundation 2025 Living With Sjogren's Patient Survey
  

• The Sjogren’s Foundation:  Healthcare Provider Resources
  

• Handout and User Guide: Sjogren’s Is More Than “Just Sicca”.