Synopsis

Source of validity: Traditional
Rating (out of 5): 2

Use of Oriental Arborvitae (Thuja orientalis) for Warts

The use of Oriental arborvitae (Thuja orientalis, also known as Platycladus orientalis) in the treatment of warts is primarily supported by traditional medicine. In Traditional Chinese Medicine (TCM) and other East Asian healing systems, preparations from the leaves, seeds, or extracts of this tree have been applied topically or taken internally to address various skin conditions, including warts. The rationale behind this use comes from historical texts where arborvitae is described as having properties that "disperse nodules" and eliminate "toxins," which is interpreted in modern terms as treating growths like warts.

Modern scientific validation for this practice is limited. While some in vitro studies on related species (especially Thuja occidentalis, commonly called northern white cedar) indicate possible antiviral and immunomodulatory effects—mechanisms relevant to wart treatment, as warts are caused by human papillomavirus (HPV)—these findings have not been robustly investigated for Thuja orientalis specifically. Clinical trials focusing on the efficacy and safety of Oriental arborvitae for warts are lacking. Most available evidence stems from anecdotal reports and the long-standing inclusion of the plant in herbal compendia.

In summary, the use of Oriental arborvitae for warts is mainly justified by tradition, with evidence quality rated at 2 out of 5 due to the absence of rigorous clinical data despite some plausible pharmacological actions suggested by laboratory research on related species.

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