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the claim

Psychological stress increases the risk of recurrent mouth ulcers.

the verdict
INSUFFICIENT LEANING
Recorded sources
3 sources for · 1 against

Counts group repeated records of the same source within each side. They do not measure evidence strength or source independence.

Is it true that psychological stress increases the risk of recurrent mouth ulcers?

Unclear. Two studies (an Egyptian cross-sectional survey and a survey of dental students) report that perceived or psychological stress is associated with recurrent aphthous/mouth ulcers, while one case report attributes recurrent mouth ulcers to hormonal rather than stress-related causes. None of the items establishes the general causal claim at the strength asserted.

Verdict: PARTIAL LEAN · 3 sources for, 1 against · Last checked

The private library was unavailable for some searches in this check. Missing library results are not evidence against the claim.

Evidence for · 3
Psychological stress
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Psychological stress. (n.d.). en.wikipedia.org. https://en.wikipedia.org/wiki/Psychological_stress

Evidence against · 1
Recurrent Mouth Ulcers, Diagnostics and Management Challenges: Case Report
2026
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Loti, P. (2026). Recurrent Mouth Ulcers, Diagnostics and Management Challenges: Case Report. doi.org. https://doi.org/10.21203/rs.3.rs-10181611/v1

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More for · 2
Prevalence profile perceived stress and impact on quality of life for recurrent aphthous ulcers: a cross-sectional epidemiological study in Egypt.
2026
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D, G. (2026). Prevalence profile perceived stress and impact on quality of life for recurrent aphthous ulcers: a cross-sectional epidemiological study in Egypt.. doi.org. https://doi.org/10.1186/s12903-026-08151-7

Recurrent Oral Ulcers and Its Association With Stress Among Dental Students in the Northeast Indian Population: A Cross-Sectional Questionnaire-Based Survey -
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Recurrent Oral Ulcers and Its Association With Stress Among Dental Students in the Northeast Indian Population: A Cross-Sectional Questionnaire-Based Survey - PMC Lock. (n.d.). pmc.ncbi.nlm.nih.gov. https://doi.org/10.7759/cureus.34947

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