Short answer · Medically reviewed summary · Last updated: 2026-04-07
The estimated prevalence of Trigeminal Neuralgia is approximately 4 to 13 per 100,000 people, though these figures often vary due to challenges in standardized diagnostic reporting. Incidence and Demographic Distribution The annual incidence of Trigeminal Neuralgia is estimated at 12.6 per 100,000 person-years, according to data synthesized by the NIH Genetic and Rare Diseases Information Center (GARD). While Trigeminal Neuralgia can occur at any age, it is most frequently diagnosed in adults over the age of 50, with onset rising significantly in the 60-to-70-year age bracket.
6 people with Trigeminal Neuralgia have shared their first-person experience on this question at DiseaseMaps.
What is the prevalence of Trigeminal Neuralgia?
Prevalence of Trigeminal Neuralgia: how many people are affected worldwide, differences by sex and region, with sources.
The estimated prevalence of Trigeminal Neuralgia is approximately 4 to 13 per 100,000 people, though these figures often vary due to challenges in standardized diagnostic reporting.
Incidence and Demographic Distribution
The annual incidence of Trigeminal Neuralgia is estimated at 12.6 per 100,000 person-years, according to data synthesized by the NIH Genetic and Rare Diseases Information Center (GARD). While Trigeminal Neuralgia can occur at any age, it is most frequently diagnosed in adults over the age of 50, with onset rising significantly in the 60-to-70-year age bracket. Pediatric cases are rare and often warrant a thorough investigation for underlying secondary causes, such as multiple sclerosis or structural vascular anomalies.
Regarding gender, research consistently indicates that women are more frequently affected by Trigeminal Neuralgia than men, with a ratio often cited between 1.5:1 and 2:1. While geographic and ethnic variations are not strongly established in the literature, the global clinical burden remains significant due to the debilitating nature of the neuropathic pain associated with the condition.
Challenges in Data and Community Perspective
Classifying Trigeminal Neuralgia as "rare" versus "common" is debated; while it is not ultra-rare, its impact on quality of life is profound. Accurate prevalence data is notoriously difficult to capture because Trigeminal Neuralgia is frequently misdiagnosed as dental pain or other facial nerve disorders, leading to significant underreporting. At DiseaseMaps.org, our community of 2,009 members provides a vital, real-world perspective that complements clinical data, illustrating the diagnostic journey and the lived experience that formal registries often miss.
Medical Disclaimer: This information is for educational purposes only and does not constitute medical advice, diagnosis, or treatment. Always seek the advice of your physician or other qualified health provider with any questions you may have regarding a medical condition.
References
- NIH Genetic and Rare Diseases Information Center (GARD)
- Orphanet (The portal for rare diseases and orphan drugs)
- The Facial Pain Association (FPA) clinical resources
Prevalence of trigeminal neuralgia: A systematic review.
De Toledo IP, Conti Réus J, Fernandes M, Porporatti AL, Peres MA, Takaschima A, Linhares MN, Guerra E, De Luca Canto G.
Abstract
BACKGROUND:
The aim of this systematic review was to answer the focused question, "What are the prevalence and the epidemiological characteristics of trigeminal neuralgia in the general population?"
TYPES OF STUDIES REVIEWED:
This systematic review included observational population-based studies reporting the prevalence of trigeminal neuralgia (TN). The authors developed specific search strategies for LILACS, PubMed, ScienceDirect, Scopus, Web of Science, and Google Scholar. The authors evaluated the methodological quality of the included studies using criteria from the Agency for Healthcare Research and Quality.
RESULTS:
Among 728 studies, the authors selected only 3 for inclusion. Two studies were classified as having low risk of bias and 1 as having moderate risk. The sample size ranged from 1,838 to 13,541 adults. This review identified a higher prevalence of TN in women, ranging from 0.03% (95% confidence interval [CI], 0.01-0.08) to 0.3% (95% CI, 0.16-0.55). The maxillary and mandibular branches of the trigeminal nerve were the most affected. The proportion between women and men who had TN was 3 to 1, and those in the age bracket between 37 and 67 years were the most affected.
CONCLUSIONS AND PRACTICAL IMPLICATIONS:
The authors of this review identified a higher prevalence of TN in women older than 40 years that usually affected the maxillary and mandibular branches. Further research is required to validate the prevalence of TN in a well-structured, population-based study without a convenience sample.
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