Evidence supporting the use of: Slippery elm bark
For the health condition: Bladder Infection

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Synopsis

Source of validity: Traditional
Rating (out of 5): 1

Slippery elm bark (Ulmus rubra) has a long history of use in traditional herbal medicine, primarily among Indigenous peoples of North America and later in Western herbalism. It is most commonly employed for soothing irritated mucous membranes in the digestive tract, such as in the treatment of sore throats, coughs, and gastrointestinal complaints. The inner bark contains mucilage, a gel-like substance that coats and soothes tissues. Historically, some herbalists have extended its use to urinary tract complaints, including bladder irritation or infection, based on its demulcent (soothing) properties. The rationale is that the mucilage may help soothe the lining of the urinary tract in a similar way as it does the digestive tract.

However, there is minimal direct scientific evidence to support the use of slippery elm bark specifically for bladder infections (urinary tract infections, or UTIs). No clinical trials or robust preclinical studies have demonstrated antibacterial effects against common UTI pathogens, nor has slippery elm been shown to alter the course of infection. Its use for bladder infection is thus rooted in traditional practice, not in scientific validation. The evidence supporting its efficacy for this condition is weak and largely anecdotal, meriting a low rating. Individuals considering slippery elm for bladder infection should consult a healthcare provider, especially as untreated UTIs can lead to serious complications.

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