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Urogynaecology · London

Bulkamid urethral bulking - London.

A 20-minute day-case injection for female stress urinary incontinence - done by a specialist urogynaecologist, in a NICE-aligned London unit, with sling and overactive-bladder pathways in the same room if Bulkamid is not the right call.

A stethoscope on a clinical desk

Indicative pricing

What private Bulkamid costs in London.

Indicative ranges across our London partner units.

In short

£4,500–£7,500 all-inclusive, home the same day.

Item Indicative range
Urogynaecology consultation and bladder diary review £300–£500
Urodynamics (if not already done) £800–£1,200
Bulkamid urethral bulking (single injection) £4,500–£7,500
Bulkamid top-up injection at 3–5 years £3,000–£5,000
Post-procedure review and pelvic floor referral Included
Second-opinion review after failed sling or mesh £350–£550

The Bulkamid figure is an all-inclusive package covering consultation, cystoscopy, the hydrogel itself, the procedure and the 6-week follow-up. Prices vary by unit and by whether sedation is used.

What Bulkamid is

A non-mesh injectable, NICE-recommended for stress incontinence.

Bulkamid is a polyacrylamide hydrogel - a soft, water-based gel that is non-particulate and non-migratory. It is injected around the urethra to treat female stress urinary incontinence, and is NICE-recommended (IPG694) as an alternative to a mesh sling.

  • What it is

    A 97.5% water, 2.5% cross-linked polyacrylamide hydrogel. Non-absorbable, non-particulate, non-migratory - it stays where it is placed and integrates with the surrounding tissue.

  • How it works

    Three injections at the mid-urethra create small bulking cushions. The urethral walls coapt (meet in the middle) more effectively, so the urethra stays closed when abdominal pressure rises with a cough or sneeze.

  • What it treats

    Female stress urinary incontinence - leakage on cough, sneeze, laugh or exercise. It does not treat urgency, overactive bladder or overflow incontinence, which need different pathways.

How well it works

Efficacy at 1 year, 5 years, and beyond.

Bulkamid is durable but not permanent - the honest figures on cure, improvement and repeat rate, paired with pelvic-floor physiotherapy for the best long-term outcome.

  • At 1 year

    Over 70% of women are dry or significantly improved. A third are completely dry, the remainder use one pad a day or fewer for reassurance.

  • At 5 to 7 years

    Around 50 to 60% of women retain a meaningful benefit. Durability is best where the initial response was strong and where pelvic-floor exercises are continued.

  • Repeat injection

    About 30 to 40% of patients have a top-up injection at 3 to 5 years. The repeat is quick, well-tolerated and does not prevent future sling surgery.

Every patient is referred for supervised pelvic-floor physiotherapy after Bulkamid - the combination consistently outperforms either treatment alone.

Who benefits

When Bulkamid is the right step - and when it is not.

The patients we see most often - and the clinical signs that mean a different pathway (sling, colposuspension, Botox or PTNS) is a better fit.

  • Stress urinary incontinence, mild to moderate

    Leakage on cough, sneeze, laugh or exercise, with a positive stress test and no significant urgency.

  • Wanting to avoid a mesh sling

    Bulkamid is a NICE-recommended non-mesh alternative (IPG694) for women who do not want a synthetic sling.

  • Elderly or high anaesthetic risk

    A 20-minute procedure under local anaesthetic suits patients where a general anaesthetic is unattractive.

  • Previous failed continence surgery

    Persistent SUI after a prior sling, colposuspension or Burch procedure can often be improved with Bulkamid.

  • Post-mesh-removal stress incontinence

    Recurrent SUI after mesh explantation, where a further sling is not wanted, is a common indication.

  • No significant urethral hypermobility

    Urodynamics or Q-tip test showing minimal hypermobility - Bulkamid works by coaptation, not by supporting a hypermobile urethra.

  • Wanting a quick recovery

    Office work the next day, driving in 24 hours, no incisions - suits patients who cannot take a fortnight off.

  • Red flag: haematuria or new-onset urgency

    Blood in the urine, sudden urgency or nocturia needs a bladder work-up before any bulking - not straight to the injection list.

Procedure options

Bulkamid alongside sling, colposuspension and OAB pathways.

A quick read on the alternatives so the choice is genuinely informed. Mesh sling gives higher initial cure rates; Bulkamid gives no mesh, quick recovery, and is repeatable. Burch and Marshall-Marchetti-Krantz are rarely offered now.

  • Bulkamid (polyacrylamide hydrogel)

    Non-particulate, non-migratory hydrogel. Three injections around the mid-urethra create bulking cushions that improve coaptation. NICE-recommended (IPG694) alternative to mesh.

  • Retropubic mid-urethral sling (TVT)

    Polypropylene mesh tape under the mid-urethra. Around 90% dry at 2 years, but a 3 to 5% rate of chronic pain, dyspareunia or mesh exposure. Currently paused in NHS pathways.

  • Transobturator sling (TOT)

    Mesh tape through the obturator foramen. Similar cure rates to TVT with a different complication profile - groin pain and dyspareunia are more common.

  • Open colposuspension (Burch)

    The bladder neck is suspended to the iliopectineal ligament through a Pfannenstiel incision. Around 80% dry at 5 years, no mesh, but a 6-week recovery.

  • Laparoscopic colposuspension

    Keyhole version of the Burch. Similar durability to open, quicker recovery, but a longer operating time and a steeper learning curve for the surgeon.

  • Autologous fascial sling

    A strip of the patient's own rectus fascia is used as a sling. No synthetic material, high durability, but a longer operation and a laparotomy scar.

  • Botox for overactive bladder

    For urgency-predominant leakage rather than SUI. Injected into the detrusor via cystoscopy. Not the right tool for pure stress incontinence.

  • Second-opinion review

    A specialist review of your bladder diary, urodynamics and prior operative notes - sometimes the answer is pelvic floor physio, not another procedure.

Safety and recovery

What to expect afterwards - honestly.

Bulkamid has one of the cleanest safety profiles in continence surgery. The things worth planning are your first week of activity, the small risk of UTI, and the top-up conversation at 3 to 5 years. Bulkamid is not suitable for severe stress incontinence, mixed incontinence with detrusor overactivity, urgency-predominant leakage, an active UTI or an active vulvovaginal condition.

  • Local anaesthetic, optional sedation

    Most Bulkamid is done under local with a numbing gel and a short course of sedation. General anaesthetic is available for anxious patients or on request.

  • Urinary tract infection - up to 6%

    The commonest complication. A pre-procedure urine dip and a short antibiotic course reduce the risk. A clear plan and 24/7 contact matters.

  • Transient voiding difficulty

    A small number of patients (2 to 5%) need a temporary catheter for 24 to 48 hours if the urethra is slightly overfilled. Settles without further intervention.

  • Injection-site pain or bruising

    Mild discomfort for 24 to 48 hours, usually well controlled with paracetamol. NSAIDs are avoided in the first week to reduce bleeding risk.

  • Haematuria - short-lived

    Pink urine for 24 to 48 hours is expected. Frank blood, clots or difficulty passing urine needs the unit contacted the same day.

  • No heavy lifting for 1 week

    Light activity from day 1, office work day 2, driving after 24 hours. No gym, running, or lifting over 5kg for the first week.

  • Sexual activity after 2 weeks

    Penetrative sex is deferred for 2 weeks to allow the injection sites to heal. Bulkamid does not affect sexual function long-term.

  • Repeat rate 30 to 40% at 3 to 5 years

    The hydrogel is durable but the SUI itself can progress. A top-up injection is straightforward and does not compromise future sling surgery.

  • Red flags after discharge

    Fever, severe pelvic pain, inability to pass urine, or heavy vaginal bleeding - call the unit or go to A&E the same day.

Reading your operation note

Your Bulkamid note in four parts. Read the last one first.

Whichever London unit you have your procedure in, the operation note sent to you keeps to the same shape.

A London urogynaecologist reviewing a Bulkamid operation note

A quiet reminder

Urogynaecology language is precise and can read coldly - ask your care team to explain anything that is unclear.

Ask your care team to explain anything that is unclear.

  1. 01 Header

    Indication, prior treatment and stress-test result

    Why Bulkamid was chosen, previous continence procedures, urodynamic findings and the stress test at the time of the procedure.

  2. 02 Technique

    Injection sites and volumes

    Three injections at the mid-urethra, volume per site (0.5 to 1mL), total volume delivered, cystoscopic appearance of the bulking cushions.

  3. 03 Findings

    Voiding trial and complications

    Whether you voided satisfactorily before discharge, any bleeding, and whether a temporary catheter was needed.

  4. 04 Impression

    Recovery plan and review interval

    Read this first: activity restrictions, when to resume sex and exercise, pelvic-floor physio referral, and the 6-week review date.

Recognised by major UK insurers

BupaAXA HealthVitalityAvivaWPACignaHealixBupaAXA HealthVitalityAvivaWPACignaHealixBupaAXA HealthVitalityAvivaWPACignaHealix

Cover for Bulkamid varies by insurer - usually funded when medically indicated and after a trial of pelvic-floor physiotherapy.

Frequently asked

Everything we get asked about Bulkamid.

Quick answers on repeat rates, mesh, insurance, mixed incontinence and getting back to sex.

  • Will I need a repeat Bulkamid injection?

    About 30 to 40% of women need a top-up injection at 3 to 5 years. The hydrogel itself is stable and non-migratory, but the underlying stress incontinence can progress, particularly around the menopause. A top-up is a short, straightforward procedure and does not compromise future sling surgery if needed.

  • Is Bulkamid a mesh alternative?

    Yes. Bulkamid is a polyacrylamide hydrogel, not a mesh. It contains no polypropylene and no permanent implant that can be exposed, erode or need removal. NICE recommends it (IPG694) as a first-line non-mesh option for women with stress urinary incontinence who want to avoid a synthetic sling.

  • Does private insurance cover Bulkamid?

    Most major UK insurers - Bupa, AXA, Vitality, Aviva - cover Bulkamid when medically indicated for stress urinary incontinence. Pre-authorisation is usually needed, and some insurers require a trial of pelvic floor physiotherapy first.

  • Is Bulkamid used in children or paediatric patients?

    Bulkamid is licensed for adult women with stress urinary incontinence and is not used in children. Paediatric urinary incontinence is a specialist paediatric urology pathway and needs a very different work-up.

  • What if I have mixed incontinence (stress and urgency)?

    If urgency is the dominant symptom, Bulkamid alone is unlikely to help enough. The usual pathway is to treat the overactive bladder first - pelvic floor physio, anticholinergics, mirabegron, PTNS or Botox - and then consider Bulkamid for any residual stress leakage. Urodynamics before the injection helps confirm the pattern.

  • When can I have sex after Bulkamid?

    Penetrative sex is deferred for 2 weeks to let the injection sites heal. Bulkamid does not affect sexual function long-term, does not distort vaginal anatomy, and, unlike a mesh sling, does not carry a long-term risk of dyspareunia from an implanted tape.

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