[Differences between myofascial trigger points and tender points]

Area of Science:

• Pain Medicine
• Neurology
• Rheumatology

Context:

• Myofascial pain syndrome and fibromyalgia syndrome are distinct conditions.
• Understanding their differences is crucial for accurate diagnosis and treatment.
• Current research highlights key differentiating characteristics.

Purpose:

• To compare and contrast the clinical and pathological features of myofascial trigger points (MTrPs) and fibromyalgia tender points (TePs).
• To explore the potential underlying mechanisms differentiating these pain syndromes.
• To provide a basis for distinguishing between myofascial pain syndrome and fibromyalgia.

Summary:

• Myofascial trigger points (MTrPs) are characterized by palpable nodules, localized pain referral, and a probable peripheral mechanism.
• Fibromyalgia tender points (TePs) lack palpable nodules, are widespread, and are associated with central nervous system mechanisms.
• Differences in physical signs, pain sensitivity, and biopsy findings suggest distinct etiologies and pathophysiologies.

Impact:

• Clarifies diagnostic criteria for myofascial pain syndrome and fibromyalgia.
• Guides differential diagnosis, potentially improving patient outcomes.
• Highlights the need for condition-specific therapeutic approaches.