Index of Herbs

Concern guide

Herbs for Urinary Tract Health

Cranberry for repeat UTIs, plus herbs for urine flow and prostate symptoms, with what the research shows and when to see a doctor.

8 herbs reviewed

Updated October 22, 2026

Urinary tract infections (UTIs) are among the most common infections there are, especially in women. A bladder infection usually brings burning when you pass urine, a frequent and urgent need to go, and sometimes cloudy or strong-smelling urine, and some women get one infection after another. In men, urinary symptoms such as a weak stream, dribbling, or getting up at night to pass urine are more often linked to an enlarged prostate (benign prostatic hyperplasia, or BPH), which becomes common with age, though infection, bladder problems, and other conditions can cause the same symptoms.

Herbs have a modest, specific place here. Cranberry is the best studied, and its role is prevention: in people prone to repeat infections, juice or capsules taken daily reduced the number of new UTIs in many trials, but cranberry does not treat an infection that has already started, which usually needs a urine test and often antibiotics. Nettle, dandelion, and burdock are traditional European “flushing” herbs, taken with plenty of fluid to increase urine in minor urinary complaints. Uva ursi (bearberry leaf) is the traditional remedy for the burning and frequency of a mild bladder infection, but EMA limits it to women, for no more than a week, after a doctor has ruled out anything serious, and modern trials have been disappointing. One combination product, Canephron N, which contains centaury, lovage root, and rosemary leaf, has been compared with an antibiotic in a large trial: women taking it needed a later antibiotic somewhat more often (16.5% versus 10.2%) and had more kidney infections (5 versus 1, not statistically significant), and European urologists give it only a weak recommendation for preventing repeat infections; its results belong to that product, not to any single herb. Saw palmetto, pumpkin seed, pygeum (African cherry bark), and nettle root are used for prostate symptoms, and pumpkin seed also for an overactive bladder, but only after a doctor has ruled out serious causes. Any urinary symptoms in men, in pregnancy, or in children, and any blood in the urine, need a doctor first.

The list is ordered by strength of evidence for urinary health, then by how commonly each herb is used. Cranberry leads, followed by saw palmetto, pumpkin seed, and pygeum, whose trials disagree or are small and dated, and four herbs whose standing rests on long traditional use rather than clinical trials. Each rating applies to the specific use described, whether preventing repeat infections, relieving the symptoms of a mild bladder infection, easing prostate or overactive bladder symptoms, or increasing urine flow, and every entry links to its full monograph.

02 The shortlist

The herbs, from best studied to time-honored

How to read the ratings

  • Good clinical evidence
  • Promising clinical evidence
  • Early or mixed evidence
  • Long traditional use

Ratings show how much research backs each herb for this particular concern. Every herb links to its full monograph, with preparations, safety notes, and sources.

  1. 01 Cranberry

    Promising clinical evidence

    Vaccinium macrocarpon

    A 2023 Cochrane review of 50 trials found, with moderate certainty, that cranberry juice or capsules reduced repeat symptomatic UTIs by about a quarter in women with recurrent infections and by about half in children and in people at risk after medical procedures. It showed little or no benefit in older people in care homes, in pregnancy, or with bladder-emptying problems, and the FDA calls the evidence limited. Cranberry is for prevention only, not for treating an active infection; people taking warfarin or who form kidney stones should check with a doctor first.

    Read the cranberry monograph →

  2. 02 Saw Palmetto

    Early or mixed evidence

    Serenoa repens

    Saw palmetto berry extract is the herb most men try for the urinary symptoms of an enlarged prostate, such as a weak stream and getting up at night. EMA accepts one hexane extract at 320 mg a day as a well-established medicine, based mostly on older trials, but the large STEP and CAMUS trials found it no better than placebo, and a 2023 Cochrane review of 27 trials concluded with high certainty that it gives little to no benefit. It does not change PSA results, and rare bleeding reports mean care with blood thinners and before surgery.

    Read the saw palmetto monograph →

  3. 03 Pumpkin Seed

    Early or mixed evidence

    Cucurbita pepo

    Pumpkin seed is accepted by EMA as a traditional remedy for urinary symptoms of an enlarged prostate or an overactive bladder, once a doctor has ruled out serious causes. In the year-long GRANU trial of 1,431 men, 58.5% of those eating 5 g of seeds twice daily improved meaningfully, against 47.3% on placebo, but extract capsules did no better than placebo and the seed result still needs confirmation. Bladder studies in women are small and uncontrolled. It is a safe, nutritious food for most people, but it does not shrink the prostate, allergy is possible, and it should never replace a check for infection or prostate cancer.

    Read the pumpkin seed monograph →

  4. 04 Pygeum

    Early or mixed evidence

    Prunus africana

    Pygeum is the bark of the African cherry tree, and EMA accepts one extract at 100 mg a day as a traditional remedy for enlarged-prostate symptoms once a doctor has ruled out serious causes. A 2002 Cochrane review of 18 small trials lasting about two months found 65% of men on pygeum rated improved against 30% on placebo, but Cochrane now lists it as out of date, and no trial has compared it with standard drugs. It is well tolerated, is not for women or under-18s, comes from a protected tree, and should never replace a check for infection or prostate cancer.

    Read the pygeum monograph →

  5. 05 Uva Ursi (Bearberry)

    Long traditional use

    Arctostaphylos uva-ursi

    Uva ursi, or bearberry leaf, is Europe’s classic herbal remedy for bladder infections, and EMA accepts it as a traditional medicine to relieve burning and frequent urination in mild recurrent lower UTIs in women, once a doctor has ruled out anything serious. Modern trials have been disappointing: it eased symptoms no better than placebo, and compared with a single antibiotic dose it left women with more symptoms and more kidney infections. Its arbutin is excreted as hydroquinone, so use is limited to one week, and it is not for men, under-18s, pregnancy, breastfeeding, or kidney disorders.

    Read the uva ursi (bearberry) monograph →

  6. 06 Stinging Nettle

    Long traditional use

    Urtica dioica

    Stinging nettle is two remedies in one plant. EMA accepts the leaf and herb as a traditional tea to increase urine in minor urinary complaints, taken with plenty of fluid, and the root as a traditional remedy for enlarged-prostate symptoms once a doctor has ruled out serious causes. In 2025 EMA judged none of eight placebo-controlled root trials adequate to prove benefit. It is generally well tolerated, but the herb is not recommended in pregnancy or for anyone whose doctor has restricted their fluids.

    Read the stinging nettle monograph →

  7. 07 Dandelion

    Long traditional use

    Taraxacum officinale

    Dandelion leaf and root are classic European bitters, and EMA lists them as traditional remedies to increase urine and help flush the urinary tract in minor urinary complaints, alongside their digestive uses. That status rests on long use rather than clinical trials, and human data on urine output are limited to two small studies: a 17-person pilot of a fresh-leaf extract that reported more frequent urination, and a 14-person trial of root powder that found no extra urine output. Avoid it with daisy-family allergy or bile-duct and gallbladder problems, and check with a prescriber if you take diuretics, lithium, or diabetes medicines.

    Read the dandelion monograph →

  8. 08 Burdock

    Long traditional use

    Arctium lappa

    Burdock root, eaten as gobo in Japan, is accepted by EMA as a traditional remedy to increase urine and flush the urinary tract in minor urinary complaints, based on long use rather than trials. Non-tea forms need extra fluid, and EMA advises against combining it with prescription diuretics. It is for adults only, is not recommended in pregnancy, and should be avoided with daisy-family allergy; teas sold as burdock have caused atropine-like poisoning when contaminated with other plants.

    Read the burdock monograph →

03 Caution

Using these herbs safely

Urinary symptoms are common and often minor, but some need prompt care rather than herbs. Contact a doctor for any symptoms of a UTI, because an active infection usually needs a urine test and often antibiotics, and contact one right away for signs of a possible kidney infection: back or side pain, chills, fever, or vomiting. Blood in the urine, symptoms that come back soon after antibiotics, and any urinary symptoms in pregnancy, in men, or in children also need a medical assessment. Being unable to pass urine is an emergency. Cranberry is for preventing repeat infections, uva ursi only for short-term symptom relief once a doctor has ruled out anything serious, and none of these herbs should be used to put off treatment for an infection that has already started; in trials comparing uva ursi, or the centaury, lovage, and rosemary combination Canephron N, with a single dose of the antibiotic fosfomycin, more women who started on the herbal product developed kidney infections, and a pooled analysis of non-antibiotic approaches found they cut antibiotic use by 63% but raised the risk of incomplete recovery and kidney infection.

A few combinations are worth checking with a pharmacist. Cranberry has been linked to bleeding in people taking warfarin, including a death, so UK regulators advised avoiding cranberry products with warfarin; controlled studies mostly found no consistent effect, but anyone on warfarin should keep intake steady and tell their anticoagulation clinic, and EMA also advises avoiding cranberry with the anti-rejection drug tacrolimus. Saw palmetto has case reports of serious bleeding during surgery and a warfarin warning in its EU monograph, so it needs care with blood thinners and should be mentioned before any operation. Nettle, dandelion, and burdock are traditionally used to increase urine, so EMA advises against combining burdock with prescription diuretics, and people taking diuretics, lithium, diabetes medicines, or blood pressure medicines should ask before using any of them. Pygeum has no documented drug interactions, but it has never been tested alongside prescription prostate drugs, and combination prostate products carry the cautions of every ingredient they contain.

Some people should avoid particular herbs. Cranberry can raise urinary oxalate, so people who have had kidney stones should be cautious. Uva ursi should not be used with kidney disorders, by men without a doctor’s advice, or for more than a week, because its arbutin is broken down to hydroquinone, which caused tumors in rodents at high doses. Pumpkin seed products should be avoided by anyone who has reacted to pumpkin or other gourd-family foods, because rare allergic reactions, including anaphylaxis, have been reported. Flushing herbs are unsuitable for anyone whose doctor has restricted their fluids, including many people with heart failure or kidney disease. Dandelion and burdock belong to the daisy family, so people with daisy-family allergy should avoid them, and dandelion should not be used with gallstones, bile-duct obstruction, other gallbladder disease or liver disease. EMA sees no relevant use for pygeum in women or under-18s, and it has not been studied in pregnancy. Pregnancy and breastfeeding: EMA does not recommend cranberry medicines, nettle herb, medicinal burdock, uva ursi, or pumpkin seed extracts, and NCCIH says saw palmetto may be unsafe. Children: EMA does not recommend cranberry, uva ursi, or pumpkin seed medicines under 18, saw palmetto should never be given to children because girls given it have had hot flashes and early periods, and a child with a UTI needs a pediatric assessment.

Product choice matters too. A glass of cranberry juice cocktail contains close to 30 grams of sugar, and capsules list cranberry powder, extract, or PACs in ways that are not directly comparable. A capsule labeled simply “nettle” may contain either the leaf or the root, which are used for different things. Saw palmetto extracts vary widely, and EMA has documented products padded with olive oil. Pygeum supplements can differ chemically from the bark they come from, and the tree is protected under CITES because wild bark harvesting has been unsustainable, so it is worth asking where a product’s bark was sourced. Combination prostate and “bladder cleanse” blends make it hard to know what you are taking or which ingredient caused a problem, and many bladder and kidney teas contain uva ursi, so single-herb products with a stated plant part and dose are easier to use safely.

04 Questions

Frequently Asked Questions

Cranberry has the strongest evidence. A 2023 Cochrane review of 50 trials found that cranberry juice or capsules cut repeat symptomatic UTIs by about a quarter in women with recurrent infections and by about half in children and in people at risk after medical procedures. It did not clearly help older people in care homes or pregnant women, and the FDA describes the evidence as limited. If you get frequent UTIs, a doctor can also discuss other prevention options.

No. NCCIH says cranberry is not recommended as a treatment for an existing UTI, and its proposed action, stopping bacteria from sticking to the bladder wall, fits prevention rather than cure. Burning, frequency, or urgency usually need a urine test and often antibiotics, and back or side pain, chills, fever, or vomiting can mean a kidney infection that needs care right away.

Not reliably. EMA accepts uva ursi only as a traditional remedy to relieve burning and frequent urination in mild recurrent bladder infections in women, for no more than a week, after a doctor has ruled out anything serious. In a placebo-controlled trial of 382 women it did not ease symptoms, and against a single dose of the antibiotic fosfomycin it left more symptoms and more kidney infections. It is not for men, children, pregnancy, breastfeeding, or kidney disorders.

Not reliably. Saw palmetto is the most popular choice, but two large NIH-funded trials found it no better than placebo, and a 2023 Cochrane review concluded with high certainty that it gives little to no benefit for urinary symptoms. EMA accepts nettle root only as a traditional remedy, after finding none of eight placebo-controlled trials adequate. Pumpkin seed is also an EU traditional remedy; in a year-long trial of 1,431 men, whole seeds helped somewhat more men than placebo, but an extract did not. Pygeum bark extract beat placebo in small, two-month trials published between 1972 and 1999, but that review is now out of date and EMA accepts it only as a traditional remedy. Urinary symptoms in men can come from prostate cancer, infection, or bladder problems, so see a doctor first; prescription treatments for BPH have much stronger evidence.

It is the traditional idea behind herbs such as nettle leaf, dandelion, and burdock, which EMA accepts as traditional remedies to increase urine in minor urinary complaints, taken with plenty of fluid. This rests on long use rather than clinical trials. Flushing herbs are not a treatment for infection, are unsuitable for anyone told to restrict fluids, and should not be combined with prescription diuretics without a doctor’s advice.

Both need care. After reports of bleeding in people taking warfarin, including a death, UK regulators advised avoiding cranberry products with warfarin; most controlled studies found no consistent change in INR, but talk to your anticoagulation clinic before starting or stopping it. Cranberry can also raise urinary oxalate, so people who have had kidney stones should ask their doctor before taking it every day, especially as concentrated tablets.

Not a reliable one. The best-studied herbal product, Canephron N, combines centaury, lovage root, and rosemary leaf. In a trial of 659 women with uncomplicated bladder infections, 16.5% of those taking it later needed an antibiotic, against 10.2% after a single dose of fosfomycin, and symptoms eased faster with the antibiotic. European urology guidelines suggest discussing antibiotic-sparing options only for uncomplicated infections in women who are not elderly, with a clinician. Uva ursi fared worse against fosfomycin. Back or side pain, chills, fever, or vomiting need care right away.

See a doctor for any symptoms of a UTI, and right away for back or side pain, chills, fever, or vomiting, which can signal a kidney infection. Blood in the urine, symptoms that come back soon after antibiotics, and urinary symptoms in pregnancy, in men, or in children also need an assessment, and being unable to pass urine is an emergency. Herbs such as cranberry are for prevention once a doctor has dealt with the immediate problem.

05 References

Sources

These references support the claims in this guide. Each herb’s monograph carries its own full source list.

  1. Cranberries for preventing urinary tract infections

    Cochrane Database of Systematic Reviews (PubMed 37947276), 2023

    Supports the some rating for cranberry: 50 trials; moderate-certainty reduction in repeat UTIs in women with recurrent UTIs (risk ratio 0.74), children (0.46), and after medical interventions (0.47), but no clear benefit in institutionalized older people or pregnancy.

  2. Cranberry

    National Center for Complementary and Integrative Health (NIH), 2024

    States that cranberry may lower the risk of recurrent UTIs in women, is not a treatment for existing UTIs, and has conflicting evidence on warfarin.

  3. FDA Announces Qualified Health Claim for Certain Cranberry Products and Urinary Tract Infections

    U.S. Food and Drug Administration, 2020

    Allows qualified claims describing limited and inconsistent evidence for cranberry juice beverages and limited evidence for supplements in reducing recurrent UTI in healthy women.

  4. European Union herbal monograph on Vaccinium macrocarpon Aiton, fructus

    European Medicines Agency (EMA/HMPC/49135/2017), 2023

    Traditional use in women for recurrent lower UTIs; not recommended in men, pregnancy, or under 18; oxalate warning; warfarin and tacrolimus contraindicated.

  5. Serenoa repens for the treatment of lower urinary tract symptoms due to benign prostatic enlargement

    Cochrane Database of Systematic Reviews (PubMed 37345871), 2023

    Supports the mixed rating for saw palmetto: 27 trials with 4,656 men found, with high certainty, little to no difference in urinary symptoms or quality of life versus placebo.

  6. Saw palmetto

    National Center for Complementary and Integrative Health (NIH), 2025

    Says saw palmetto is probably not helpful for BPH symptoms, does not affect PSA, and may be unsafe in pregnancy or breastfeeding.

  7. European Union herbal monograph on Urtica dioica L.; Urtica urens L., herba (Revision 1)

    European Medicines Agency (EMA/HMPC/261302/2022), 2025

    Traditional use of nettle herb to increase urine in minor urinary complaints with adequate fluid; not recommended in pregnancy, breastfeeding, or where fluid intake is restricted.

  8. European Union herbal monograph on Urtica dioica L.; Urtica urens L., radix (Revision 1)

    European Medicines Agency (EMA/HMPC/322646/2023), 2025

    Traditional use of nettle root for lower urinary tract symptoms of BPH after a doctor has excluded serious conditions.

  9. Taraxaci radix cum herba (dandelion root with herb)

    European Medicines Agency, 2009

    Traditional use of dandelion to increase urine as an adjuvant in minor urinary complaints, with daisy-family and biliary contraindications.

  10. Community herbal monograph on Arctium lappa L., radix

    European Medicines Agency (EMA/HMPC/246763/2009 Corr.1), 2010

    Traditional use of burdock root to increase urine in minor urinary complaints in adults; diuretic caution; not recommended in pregnancy.

  11. Urinary tract infection - adults

    MedlinePlus Medical Encyclopedia, National Library of Medicine (NIH), 2024

    Source for contacting a provider about UTI symptoms, and right away for signs of kidney infection such as back or side pain, chills, fever, or vomiting.

  12. Effects of pumpkin seed in men with lower urinary tract symptoms due to benign prostatic hyperplasia in the one-year, randomized, placebo-controlled GRANU study

    Urologia Internationalis (PubMed 25196580), 2015

    Supports the mixed rating for pumpkin seed: in 1,431 men with BPH symptoms, 58.5% taking 5 g of pumpkin seed twice daily had at least a 5-point IPSS improvement after 12 months versus 47.3% on placebo, a difference the authors analyzed only descriptively, while a pumpkin seed extract showed no benefit over placebo.

  13. Pygeum africanum for benign prostatic hyperplasia

    Cochrane Database of Systematic Reviews (PubMed 11869585), 2002

    Supports the mixed rating for pygeum: 18 randomized trials with 1,562 men, averaging 64 days; 65% versus 30% rated improved overall and peak flow up 23%, but the fall in night-time urination was not significant, the trials were small and poorly reported, none compared pygeum with standard drugs, and Cochrane now marks the review as out of date and withdrawn.

  14. European Union herbal monograph on Arctostaphylos uva-ursi (L.) Spreng., folium (Rev. 2)

    European Medicines Agency (EMA/HMPC/750269/2016), 2018

    Supports the traditional rating for uva ursi: traditional use only, for symptoms of mild recurrent lower UTIs in women after serious conditions have been excluded by a doctor; maximum one week; not recommended for men, under-18s, pregnancy, or breastfeeding; contraindicated in kidney disorders.

  15. Herbal treatment with uva ursi extract versus fosfomycin in women with uncomplicated urinary tract infection in primary care: a randomized controlled trial

    Clinical Microbiology and Infection (PubMed 34111592), 2021

    REGATTA trial of 398 women: initial uva ursi cut antibiotic courses by 63.6% but failed non-inferiority on symptom burden versus a single dose of fosfomycin, with 8 vs 2 cases of pyelonephritis.

  16. Non-Antibiotic Herbal Therapy (BNO 1045) versus Antibiotic Therapy (Fosfomycin Trometamol) for the Treatment of Acute Lower Uncomplicated Urinary Tract Infections in Women: A Double-Blind, Parallel-Group, Randomized, Multicentre, Non-Inferiority Phase III Trial

    Urologia Internationalis (PubMed 30231252), 2018

    Wagenlehner et al.: 659 women; Canephron N (centaury, lovage, rosemary) for 7 days versus single-dose fosfomycin; additional antibiotics 16.5% versus 10.2%, non-inferior only on a 15% margin; pyelonephritis 5 versus 1 (not significant); manufacturer-sponsored.

  17. EAU Guidelines on Urological Infections (limited update March 2026)

    European Association of Urology, 2026

    Weak recommendation for the centaury, lovage, and rosemary combination to reduce recurrent cystitis and antibiotic use; strong recommendations to discuss antibiotic-sparing approaches and for fosfomycin, pivmecillinam, nitrofurantoin, or nitroxoline as first-line treatment.

  18. Reducing antibiotic use in uncomplicated urinary tract infections in adult women: a systematic review and individual participant data meta-analysis

    Clinical Microbiology and Infection (PubMed 35788049), 2022

    Kaußner et al.: 3,524 women in eight trials; non-antibiotic strategies (analgesics, herbal products, delayed prescription) cut antibiotic use by 63% but raised the odds of incomplete recovery (OR 3.0) and pyelonephritis (OR 5.6).

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