{"status":"ok","message-type":"work","message-version":"1.0.0","message":{"indexed":{"date-parts":[[2026,7,31]],"date-time":"2026-07-31T04:59:24Z","timestamp":1785473964483,"version":"3.56.0"},"reference-count":90,"publisher":"Frontiers Media SA","license":[{"start":{"date-parts":[[2026,7,31]],"date-time":"2026-07-31T00:00:00Z","timestamp":1785456000000},"content-version":"vor","delay-in-days":0,"URL":"https:\/\/creativecommons.org\/licenses\/by\/4.0\/"}],"content-domain":{"domain":["frontiersin.org"],"crossmark-restriction":true},"short-container-title":["Front. Neurol."],"abstract":"<jats:p>Trigeminal neuralgia (TN) is a neuropathic pain disorder characterized by recurrent, unilateral, electric shock-like facial pain, with trigger zones representing one of its most distinctive clinical features. These localized hypersensitive regions can be reliably activated by innocuous mechanical stimuli such as light touch, speech, or chewing, and their distribution provides important guidance for localizing the affected trigeminal branch and directing treatment decisions. Current evidence suggests that trigger zone formation involves peripheral nerve hyperexcitability driven by upregulation of voltage-gated sodium channels, mechanical sensitization from adjacent facial and masticatory muscle activity, and central sensitization within the trigeminal brainstem complex. At the brainstem level, abnormal activation of wide dynamic range neurons results in the misinterpretation of innocuous tactile input as pain. Clinically, systemic sodium channel blockers remain the foundation of initial treatment, while trigger zone-targeted interventions including peripheral nerve blockade, botulinum toxin type A injections, and minimally invasive ablative techniques have emerged as important adjunctive approaches. The absence of standardized objective assessment criteria and insufficient comparative clinical evidence remain key limitations in the field. A more thorough understanding of trigger zone pathophysiology may ultimately support the development of precision-based, individualized management strategies for TN.<\/jats:p>","DOI":"10.3389\/fneur.2026.1838454","type":"journal-article","created":{"date-parts":[[2026,7,31]],"date-time":"2026-07-31T04:25:10Z","timestamp":1785471910000},"update-policy":"https:\/\/doi.org\/10.3389\/crossmark-policy","source":"Crossref","is-referenced-by-count":0,"title":["Trigger zones in trigeminal neuralgia: clinical features, pathophysiological mechanisms, and therapeutic strategies"],"prefix":"10.3389","volume":"17","author":[{"given":"Xiaoyan","family":"Li","sequence":"first","affiliation":[{"name":"Beijing Key Laboratory of Acupuncture Neuromodulation, Beijing Hospital of Traditional Chinese Medicine, Capital Medical University","place":["Beijing, China"]}],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Huilin","family":"Liu","sequence":"additional","affiliation":[{"name":"Beijing Key Laboratory of Acupuncture Neuromodulation, Beijing Hospital of Traditional Chinese Medicine, Capital Medical University","place":["Beijing, China"]}],"role":[{"vocabulary":"crossref","role":"author"}]}],"member":"1965","published-online":{"date-parts":[[2026,7,31]]},"reference":[{"key":"ref1","doi-asserted-by":"publisher","first-page":"1744806920901890","DOI":"10.1177\/1744806920901890","article-title":"Trigeminal neuralgia: an overview from pathophysiology to pharmacological treatments","volume":"16","author":"Gambeta","year":"2020","journal-title":"Mol Pain"},{"key":"ref2","doi-asserted-by":"publisher","first-page":"580","DOI":"10.1002\/ejp.2081","article-title":"Incidence of trigeminal neuralgia: a population-based study in Central Sweden","volume":"27","author":"Svedung Wettervik","year":"2023","journal-title":"Eur J Pain"},{"key":"ref3","doi-asserted-by":"publisher","first-page":"332","DOI":"10.3344\/kjp.2021.34.3.332","article-title":"Epidemiology of trigeminal neuralgia: an 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