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the claim

Undergoing general anesthesia for surgery causes temporary hair loss.

the verdict
INSUFFICIENT LEANING
Recorded sources
2 sources for · 0 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 undergoing general anesthesia for surgery causes temporary hair loss?

Unclear. A case report and a narrative review suggest a possible link between general anesthesia/surgery and telogen effluvium hair loss, but the evidence is limited to a single patient with pre-existing telogen effluvium and a review noting significant gaps in high-quality research.

Verdict: PARTIAL LEAN · 2 sources for, 0 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 · 2
Telogen Effluvium and Anesthesia Considerations: A Case Report -
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Telogen Effluvium and Anesthesia Considerations: A Case Report - PMC Lock. (n.d.). pmc.ncbi.nlm.nih.gov. https://doi.org/10.7759/cureus.88366

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More for · 1
Exploring the Potential Links between Telogen Effluvium, Alopecia Areata, Pressure-Induced Alopecia, and General Anesthesia: A Narrative Review.
2026
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O, P., ŁS, A., A, J., D, P., AM, G., W, B., R, O., & M, G. (2026). Exploring the Potential Links between Telogen Effluvium, Alopecia Areata, Pressure-Induced Alopecia, and General Anesthesia: A Narrative Review.. doi.org. https://doi.org/10.1007/s13555-025-01616-7

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