Overactive bladder syndrome: urinary symptoms, urinary incontinence, causes and treatments

October 16, 2026 · @GPNutraceuticals

Overactive bladder, or overactive bladder syndrome, is a condition that causes a sudden, hard-to-control need to urinate, often with increased urination during the day and at night and sometimes small leaks. It is not an inevitable consequence of aging and it can be treated: treatment usually starts with bladder retraining and lifestyle changes, followed, if needed, by medication and other therapies. It affects more than one in ten adults, men and women at similar rates, and is more common with age. As for supplements, the 2024 American guidelines say there is currently not enough evidence to recommend them.

In this guide, learn about the causes, symptoms, and warning signs; when to see a urologist; which tests are needed; how the condition is treated; and what studies say about pumpkin seeds, soy, and other supplement ingredients.

Reading time: 11 minutes

Last updated: October 2026

Scientific review: GP Nutraceuticals Team

Main sources: 2024 AUA/SUFU guidelines and EAU guidelines, the European EPIC study, a Cochrane review on pelvic floor exercises, clinical studies on pumpkin seeds and soy isoflavones

What is overactive bladder? Bladder contractions and dysfunction

According to the International Continence Society definition, overactive bladder syndrome is characterized by urinary urgency, a sudden, strong urge that is difficult to postpone. It is usually accompanied by frequency, meaning urinating many times during the day (generally more than eight), and nocturia, meaning waking up at night to urinate, with or without leakage. It is a group of symptoms: the term is used only after an infection or other obvious causes have been ruled out.

The underlying cause is involuntary bladder contractions: the detrusor, the bladder muscle, contracts during the filling phase even when the bladder is not full. When the urge causes leaks, this is called urge incontinence. It differs from stress incontinence, in which urine leaks when coughing, sneezing, or exerting yourself because the tissues supporting the bladder and urethra are not holding properly. The two types can occur together, in what is called mixed incontinence, and are treated differently.

In brief: the 5 key points

The guide’s central message in five points: the condition is common, it can improve, and care starts with habits.

• It affects more than one in ten adults, men and women, and becomes more common with age.
• The key symptom is a sudden urge to urinate, often with the need to go to the bathroom frequently, both during the day and at night.
• Traces of blood, pain, fever, or difficulty emptying the bladder may point to another condition and require medical attention.
• The first-line treatment is behavioral therapy: bladder retraining, pelvic floor exercises, fluid management, and less coffee; followed by medications and other treatments.
• Evidence on supplements is limited: pumpkin seeds have the best data, but mostly from studies involving men.

What you’ll find in this guide

The guide starts with a definition, moves on to causes, symptoms, and tests, and ends with treatments, supplements, and frequently asked questions.

• Causes and risk factors.
• Symptoms and warning signs.
• When to see a doctor and which tests to have.
• Behavioral remedies, medications, and other treatments according to guidelines.
• What studies say about supplements.
• Frequently asked questions.

This guide is for informational and educational purposes only and does not replace the advice of a doctor or other qualified healthcare professionals.

What causes overactive bladder?

In most cases, no specific cause is found, and the condition is described as idiopathic. It results from altered signaling between the bladder, peripheral nerves, and central nervous system: the detrusor muscle becomes overly sensitive and contracts too soon, or the brain can no longer suppress the urge as it should. Sometimes the condition is linked to an identifiable cause, such as neurological disorders (stroke, Parkinson’s disease, multiple sclerosis, spinal cord injuries) or, in men, an enlarged prostate that obstructs bladder emptying.

Risk factors

The condition is more common in people who:

• is over 40-50 years old;
• is going through menopause: the drop in estrogen makes the bladder and urethral tissues more fragile;
• is a man with an enlarged prostate;
• is overweight;
• consumes a lot of caffeine, tea, carbonated drinks, or alcohol, which irritate the bladder or increase urine production;
• has chronic constipation;
• has diabetes, nervous system disorders, pelvic organ prolapse, or has had pelvic surgery.

What are the symptoms of overactive bladder?

The main symptom is urgency: a sudden, strong urge that is difficult to put off. Other typical symptoms revolve around this need to urinate:

• frequent urination: generally more than 8 times in 24 hours, often in small amounts;
• nighttime awakenings: waking up once or more during the night to urinate;
• leakage: it happens before reaching the bathroom; not everyone experiences it, which is why a distinction is made between a “wet” form and a “dry” form, with no leakage;
• defensive habits that interfere with daily activities: always looking for a bathroom, avoiding trips, movies, or long meetings, and drinking less.

The condition does not cause pain or burning. If you have these symptoms, the cause is probably something else, such as a urinary tract infection (see our guide to cystitis).

Urinary incontinence and other warning signs

See a doctor without delay if you also experience:

• blood in your urine;
• pain or burning when you urinate, fever, or pain in your side;
• difficulty emptying your bladder, a weak stream, or a feeling that your bladder has not emptied completely;
• symptoms that appeared suddenly or worsened over a few weeks;
• tingling, leg weakness, or other neurological symptoms;
• leakage when coughing, sneezing, or straining (stress incontinence, which has different causes and treatments).

Diagnosis: when to see a doctor and what tests to have

When should you see a urologist for overactive bladder?

It is worth talking to your family doctor, urologist, or gynecologist when symptoms affect your quality of life or sleep. Many people wait years because they feel embarrassed, but the condition can be treated, and an appointment can also help rule out other conditions. Consult a urologist in particular if initial treatments are not enough, if you have significant leakage, blood, or difficulty emptying your bladder, and, for men, to have your prostate evaluated.

How is it diagnosed?

According to the American Urological Association (AUA/SUFU 2024) guidelines, the basic diagnostic tests include:

• consultation: based on your medical history, including how long you have had symptoms, how much you drink, medications you take (for example, diuretics), pregnancies, surgeries, and bowel habits;
• examination: abdominal and pelvic examination for women, prostate examination for men;
• urine test: to rule out infection, blood, or glucose;
• post-void residual: a simple ultrasound measures how much urine remains in the bladder after urinating; this is especially useful if you have difficulty emptying your bladder;
• bladder diary: for 3 days, record how much you drink, how often you go to the bathroom, the amounts, and episodes of sudden urgency or leakage. It is a simple and very useful tool for understanding the problem and measuring progress.

Urodynamic testing, which can document detrusor overactivity, is not routinely needed: it is reserved for more complex cases or when more invasive treatments are being considered.

How is overactive bladder treated?

The 2024 AUA/SUFU guidelines and those of the European Association of Urology (EAU) recommend a stepwise approach: start with lifestyle changes and behavioral therapy, which should be offered to everyone, and add medication if these are not enough. The right treatment is chosen with your doctor.

Behavioral therapy: how to reduce the urge to urinate

• Bladder training: the interval between bathroom visits is gradually extended, for example by 15 minutes each week, until it reaches 3-4 hours. The AUA guidelines recommend it for everyone, with the highest level of evidence.
• Techniques to suppress the urge: when it comes on, stop, contract the pelvic floor muscles a few times, and breathe slowly until the urge eases, then go to the bathroom calmly.
• Kegel exercises: these strengthen the pelvic floor, ideally under the guidance of a physical therapist or midwife, including with biofeedback. A Cochrane review confirms they reduce urinary incontinence in women, including mixed incontinence.
• Fluids: drink about 1.5 liters regularly each day, without drinking too much or cutting back excessively (concentrated urine irritates the bladder). Drink less in the 2-3 hours before bed.
• Coffee and alcohol: limit coffee, tea, energy drinks, carbonated drinks, and alcohol.
• Weight: for people who are overweight, even moderate weight loss reduces leakage.
• Bowels: treat constipation, which puts pressure on the bladder.

Anticholinergic drugs, beta-3 agonists, and other treatments

If lifestyle changes are not enough, a doctor may suggest:

• anticholinergics or antimuscarinic drugs (such as solifenacin, oxybutynin, tolterodine, fesoterodine): they help relax the bladder muscles. They can cause dry mouth and constipation; guidelines recommend discussing the possible risk of cognitive decline and dementia with the patient, especially in frail older adults;
• beta-3 agonists (mirabegron, vibegron): they work through a different mechanism, are less likely to cause dry mouth and constipation, and are often preferred for older people;
• vaginal estrogen during menopause, as advised by a gynecologist;
• third-line therapies for cases that do not respond: injections of botulinum toxin into the bladder wall, tibial nerve stimulation (PTNS), and sacral neuromodulation, a form of neurostimulation.

For men, a urology appointment is also important to check the prostate, since an enlarged gland can cause similar symptoms and require different treatment.

Supplements for overactive bladder: what do the studies say?

The most studied natural remedies are pumpkin seeds, on their own or combined with soy isoflavones. They are thought to act on bladder tone and, in menopausal women, on estrogen-sensitive tissues. However, there are few studies, they are often small, and most concern men with an enlarged prostate, not this syndrome.

Scientific evidence and regulatory claims are two different things. An authorized claim on a label describes a physiological function recognized by an authority and does not prove that a product treats this condition. Likewise, a favorable study does not, by itself, authorize a claim.

What the guidelines say

The 2024 AUA/SUFU guidelines ask doctors to explain to patients that evidence on supplements, vitamins, and herbal remedies for this disorder is insufficient. No supplement is recommended as an alternative to behavioral remedies or medication.

Studies on individual ingredients

One finding helps put these results in context: in the GRANU study, almost half of the men improved with placebo. For this reason, studies without a control group, which often report very large improvements, should be treated with caution. In studies, pumpkin- and soy-based preparations were well tolerated, with no serious adverse effects. Anyone who has had a hormone-sensitive cancer or is receiving hormone therapy should talk to their doctor before taking soy isoflavones.

What a supplement can claim

None of these ingredients has an EU-authorized health claim concerning the bladder or continence. In Italy, for some plants such as pumpkin seeds, the Ministry of Health allows label claims such as urinary tract function, which describe a physiological function, not the treatment of a disorder. For vitamin C, Regulation (EU) 432/2012 authorizes general claims, for example about the immune system and the protection of cells from oxidative stress, which do not concern the bladder.

Frequently asked questions

Quick answers to common questions: whether it can be cured, how much to drink, which drinks irritate the bladder, which exercises to do, pumpkin seeds, age, menopause, and anxiety.

Can overactive bladder be cured?

It can often be managed very well. With bladder training, Kegel exercises, and medication if needed, most people reduce sudden urges, frequency, and leakage. However, this condition tends to persist over time, so good habits need to be maintained.

Does drinking less water help?

It is not a good idea to cut back too much: drinking too little concentrates your urine, irritates the bladder, and increases the risk of constipation and infections. It is better to drink regularly throughout the day, around 1.5 liters unless your doctor advises otherwise, and limit fluids in the hours before bed.

Which drinks and foods irritate the bladder?

The strongest evidence concerns coffee and alcohol. Some people also notice worsening symptoms with carbonated drinks, tea, artificial sweeteners, citrus fruits, or spicy foods, but responses vary: a bladder diary can help you figure out what to cut back on, without unnecessary restrictions.

Which pelvic floor exercises help strengthen it?

Kegel exercises: contract the pelvic floor muscles for a few seconds, as if holding in urine, then relax. Do several sets a day. They can help control the urge when it comes on and, with regular practice, reduce leakage. It is helpful to learn how to do them with a physical therapist or midwife, as many people do them incorrectly.

Do pumpkin seeds help with overactive bladder?

Evidence is limited. The clearest, though modest, benefit was observed with 10 grams a day of whole seeds in men with age-related urinary symptoms; studies on this condition are few and inconclusive. Pumpkin seeds can be part of a varied diet, but they do not replace treatments recommended by your doctor.

Is overactive bladder normal with age?

It becomes more common with age, but it is not an inevitable consequence of aging and should not be accepted as normal. If sudden urges or leakage limit your activities or disrupt your sleep, it is worth talking to your doctor: effective treatments are available at every age.

Why does overactive bladder get worse during menopause?

During menopause, declining estrogen levels thin the tissues of the bladder and urethra and make them more sensitive. This can increase sudden urges, frequency, and leakage. Vaginal estrogen, prescribed by a gynecologist, may help and is used alongside behavioral therapy.

When can anxiety affect the bladder?

Anxiety and stress do not cause the disorder on their own, but they can make the urge more intense and frequent. The reverse is also true: fear of leakage fuels anxiety and leads people to keep looking for a bathroom. Breathing techniques used to suppress the urge help on both fronts; if anxiety is affecting daily life, it is worth discussing with a doctor.

In summary

Overactive bladder is a common condition affecting more than one in ten adults, both men and women. It is characterized by a sudden urge to urinate, often with frequent trips to the bathroom, nighttime awakenings, and sometimes leakage. It does not cause pain or burning: if these occur, or if blood appears, the cause should be sought elsewhere.

Treatment starts with habits: bladder training, pelvic floor exercises, regular fluid intake, and less coffee and alcohol. If these are not enough, effective medications are available and, for cases that do not respond, treatments such as botulinum toxin and neuromodulation. For supplements, including pumpkin and soy seeds, the guidelines consider the evidence insufficient.

The GP Nutraceuticals nutraceutical approach

A supplement is not a treatment for this syndrome and does not replace a doctor's assessment, bladder training, or medication when needed. It can complement the healthy habits described in this guide.

NoDrops is a dietary supplement in tablet form combining dry extracts of pumpkin seeds (425 mg) and soy (75 mg, including 22.5 mg of isoflavones), California poppy (200 mg), quercetin (100 mg), chili pepper extract (60 mg, standardized to 2.5% capsaicin), and vitamin C (80 mg). The amounts are per tablet. The recommended regimen is 2 tablets per day for 4 weeks, then 1 tablet per day for 20 weeks.

Among the health claims permitted by Regulation (EU) 432/2012:

• vitamin C contributes to the normal function of the immune system;
• vitamin C contributes to the protection of cells from oxidative stress.

The ingredient amounts in a dietary supplement differ from those used in the studies described in this guide (in the GRANU study, for example, benefits were observed with 10 g per day of whole pumpkin seeds, while the extract did not outperform the placebo), so the results of those studies cannot be attributed to the product. If you notice blood, pain, burning, or fever, consult a doctor. During pregnancy or breastfeeding, in the case of hormone-sensitive tumors, hormone therapy, or other ongoing treatments, it is best to discuss this with a doctor first.

Scientific sources and references

This guide was prepared based on peer-reviewed scientific literature and official sources available at the time of the update.

Guidelines and official sources

• Cameron AP, Chung DE, Dielubanza EJ, et al. The AUA/SUFU guideline on the diagnosis and treatment of idiopathic overactive bladder. J Urol. 2024. doi.org
• European Association of Urology. EAU Guidelines on Non-neurogenic Female LUTS. uroweb.org
• European Association of Urology. EAU Guidelines on the Management of Non-neurogenic Male LUTS. uroweb.org
• Commission Regulation (EU) No 432/2012, establishing a list of permitted health claims made on foods. eur-lex.europa.eu

Prevalence and non-pharmacological treatments

• Irwin DE, Milsom I, Hunskaar S, et al. Population-based survey of urinary incontinence, overactive bladder, and other lower urinary tract symptoms in five countries: results of the EPIC study. Eur Urol. 2006. doi.org
• Dumoulin C, Cacciari LP, Hay-Smith EJC. Pelvic floor muscle training versus no treatment, or inactive control treatments, for urinary incontinence in women. Cochrane Database Syst Rev. 2018. doi.org

Supplements

• Vahlensieck W, Theurer C, Pfitzer E, et al. 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. Urol Int. 2015. doi.org
• Rangika T, Rathnayake M, Eknaligoda M, et al. Effects of pumpkin on benign prostatic hyperplasia: a systematic review and meta-analysis. J Coll Community Physicians Sri Lanka. 2023. doi.org
• Shim B, Jeong H, Lee S, et al. A randomized double-blind placebo-controlled clinical trial of a product containing pumpkin seed extract and soy germ extract to improve overactive bladder-related voiding dysfunction and quality of life. J Funct Foods. 2014. doi.org
• Marañón JA, Lozano C, Martinez-Campesino L, et al. Clinical study: effect of supplementation with high genistein soybean isoflavones and pumpkin standardized extract on urinary incontinence in Western perimenopausal women. J Gynecol Women's Health. 2017. doi.org

Update history

We update this guide when new guidelines or relevant studies are published.

Version 1.0 – October 2026

First published. Primary sources: AUA/SUFU guidelines on overactive bladder (2024) and EAU guidelines on urinary disorders, the EPIC epidemiological study, a Cochrane review of pelvic floor muscle exercises, and clinical studies on pumpkin seeds and soy.