Evidence supporting the use of: Marking Nut Tree
For the health condition: Anal Fistula or Fissure

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Synopsis

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

The Marking Nut Tree (Semecarpus anacardium) has a history of use in traditional Indian medicine, including Ayurveda, where it is known as "Bhallataka." Its application for anorectal disorders—such as anal fistula (bhagandara) or fissure (parikartika)—is documented in classical Ayurvedic texts. The fruit's oil or paste is sometimes topically applied as a cauterizing agent (kshara) or incorporated into herbal preparations intended to induce healing, reduce infection, or promote local tissue fibrosis, which may help close fistulous tracts.

However, evidence for its efficacy is largely anecdotal or based on traditional formulations rather than robust scientific studies. Some small-scale reports and case series in Ayurveda literature note symptomatic improvement, but there are no well-controlled clinical trials evaluating its safety or effectiveness for anal fistula or fissure. Modern pharmacological studies have identified anti-inflammatory and antimicrobial properties in Semecarpus anacardium extracts, but these findings have not been directly linked to clinical outcomes in anorectal disease.

Additionally, the nut is known to be caustic and can cause severe skin irritation or allergic reactions, which raises safety concerns regarding its topical use. In summary, while the Marking Nut Tree is used traditionally in the treatment of anal fistula and fissure, scientific validation for this application is limited, and its use should be approached with caution.

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