Sling Surgery for Urinary Incontinence

Introduction

Stress urinary incontinence — the leakage of urine when you cough, sneeze, laugh, lift, or exercise — is one of the most common conditions in women, and a meaningful proportion of men also experience it after prostate surgery. For many people, pelvic floor exercises, physiotherapy, and lifestyle changes bring enough improvement. For others, leakage continues to limit daily life, work, exercise, intimacy, and confidence.

Sling surgery is the most widely used surgical treatment for stress urinary incontinence today. It is a short operation in which a narrow strip of supportive material is placed under the urethra (the tube that carries urine out of the body) to hold it in the correct position when pressure rises inside the abdomen. The aim is to stop or significantly reduce involuntary leakage.

This guide is written for patients who already have a diagnosis of stress urinary incontinence and are now considering or planning surgery. It explains what sling surgery is, the different types, who is suitable for it, what to expect during and after the operation, possible risks, and what life tends to look like in the months and years that follow.

What Is Sling Surgery?

Sling surgery, sometimes called a urethral sling or mid-urethral sling procedure, is an operation that places a thin band of material under the urethra. This band — the sling — works like a hammock. When you cough, laugh, or exert yourself, the sudden rise in pressure pushes down on the bladder and urethra. A weakened pelvic floor cannot keep the urethra closed, and urine leaks. The sling provides the missing support so that the urethra stays compressed during these moments, which prevents leakage.

The sling itself can be made from several different materials:

• Synthetic mesh — a narrow tape made of polypropylene, the material used in most modern mid-urethral slings.
• Autologous fascia — a strip of the patient’s own connective tissue, usually taken from the abdominal wall or thigh.
• Allograft or xenograft tissue — processed tissue from a donor or animal source, used less commonly.

The operation is usually performed through small incisions, takes around 30 to 60 minutes, and is often done as a day-care or short-stay procedure. Sling surgery is considered the most studied surgical treatment for stress urinary incontinence in women and is recommended as a first-line surgical option in guidelines from the American Urological Association (AUA), the European Association of Urology (EAU), and the UK’s National Institute for Health and Care Excellence (NICE).

Why Is Sling Surgery Performed?

Sling surgery treats stress urinary incontinence (SUI) — leakage caused by physical pressure on the bladder, not by a sudden urge to urinate. Common situations that trigger leakage include:

• Coughing, sneezing, or laughing
• Lifting or carrying
• Running, jumping, or other exercise
• Standing up quickly
• Sexual activity

SUI develops when the muscles and ligaments that support the bladder neck and urethra become weakened or damaged. The most common reasons are:

• Pregnancy and vaginal childbirth, especially after multiple or difficult deliveries
• Ageing and the hormonal changes of menopause
• Chronic increases in abdominal pressure from heavy lifting, chronic cough, or long-standing constipation
• Previous pelvic surgery
• Obesity
• In men, prostate surgery — particularly radical prostatectomy for prostate cancer — can damage the urinary sphincter and lead to stress incontinence

Sling surgery is generally considered when stress incontinence is bothersome enough to affect daily life and when conservative measures have not given enough relief. It is not used to treat urge incontinence (overactive bladder) on its own, though some patients with mixed incontinence may still benefit when the stress component is the dominant problem.

Who Is a Candidate?

You may be considered a candidate for sling surgery if:

• You have been diagnosed with stress urinary incontinence, confirmed by a clinical examination and, in selected cases, urodynamic testing
• Leakage interferes with your daily activities, work, exercise, or sleep
• You have already tried pelvic floor muscle training, physiotherapy, or lifestyle changes for at least three months without enough improvement — or you have a severity of symptoms where conservative treatment is unlikely to be enough
• You are medically fit for a short surgical procedure under regional or general anaesthesia
• You understand and accept the possible risks and the small chance that further treatment may be needed

Sling surgery may be less suitable, or may need additional planning, if:

• You are planning future pregnancies — pregnancy and delivery after sling surgery can stretch or weaken the repair and bring back leakage. Many surgeons suggest completing childbearing first, although this is an individual discussion.
• Your incontinence is mainly urge-driven rather than stress-driven
• You have significant pelvic organ prolapse that needs to be addressed at the same time
• You have had previous mesh complications
• You have an active urinary tract infection (this should be treated before surgery)
• You have a condition that makes wound healing or surgery higher risk (such as poorly controlled diabetes, immunosuppression, or active pelvic radiation injury)

Whether sling surgery is the right choice in your situation is a clinical decision made together with your urologist or urogynaecologist after a full assessment.

Diagnosis and Pre-Surgical Assessment

Even if your diagnosis is already established, a careful pre-surgical assessment is standard before any sling operation. This typically includes:

• Medical, obstetric, and surgical history — including childbirth history, previous pelvic surgery, medications, and other health conditions
• A symptom and bladder diary — a few days of recording how often you pass urine, how much, and when leakage happens
• Physical and pelvic examination — to check the strength of your pelvic floor, look for prolapse, and observe leakage with cough or strain
• Urine tests — to rule out infection or blood in the urine
• Post-void residual measurement — a small ultrasound or catheter check to see how much urine is left in the bladder after you urinate
• Urodynamic testing — a more detailed bladder function test, used in selected cases such as mixed incontinence, previous failed surgery, suspected voiding difficulty, or significant prolapse
• Pelvic ultrasound in some cases

This evaluation confirms the type of incontinence, helps the surgeon choose the most appropriate sling approach, and identifies any other pelvic problems that may need to be treated at the same time.

Alternatives to Sling Surgery

Sling surgery is one of several options for stress urinary incontinence. Most guidelines, including those from AUA, EAU, and NICE, recommend trying conservative treatment first when symptoms are mild to moderate.

Pelvic Floor Muscle Training

Supervised pelvic floor exercises — sometimes called Kegel exercises — are the first-line treatment for stress urinary incontinence in nearly all current guidelines. Done correctly and consistently, typically with a trained pelvic floor physiotherapist, they can significantly reduce or resolve symptoms in many women. Biofeedback and electrical stimulation are sometimes added to help with technique.

Lifestyle Changes

Weight loss in people who are overweight, treatment of chronic cough, management of constipation, reduction of caffeine and alcohol, and stopping smoking can all reduce leakage. These changes also improve the results of any further treatment.

Vaginal Pessaries and Continence Devices

Pessaries are silicone devices placed in the vagina to support the bladder neck. They can be a good option for women who are not ready for surgery, who are planning pregnancy, or who prefer a non-surgical approach. Newer single-use continence devices are also available.

Urethral Bulking Agents

This is an injection of a gel-like material into the wall of the urethra to help it close more firmly. It is less invasive than sling surgery but generally has lower long-term success rates and may need to be repeated. Doctors may consider bulking agents for women who want to avoid mesh, who are at higher surgical risk, or who have specific anatomical reasons.

Colposuspension (Burch Procedure)

This is an older surgical option in which the tissues beside the bladder neck are stitched to a ligament behind the pubic bone to lift and support the urethra. It can be done open or laparoscopically. Long-term results are well established, and it is one of the main alternatives for women who wish to avoid synthetic mesh.

Artificial Urinary Sphincter

An artificial sphincter is a small device implanted around the urethra that the patient controls with a pump. It is most often used in men with severe stress incontinence after prostate surgery, and in selected women with severe or recurrent incontinence.

For Men: Other Options

Men with post-prostatectomy incontinence may be offered male slings, urethral bulking, or an artificial urinary sphincter depending on the severity of leakage and other factors.

Types of Sling Surgery

Several sling techniques exist. The choice depends on your anatomy, the severity and pattern of your incontinence, surgeon experience, and your own preferences after a discussion of risks and benefits.

Retropubic Mid-Urethral Sling (TVT)

This is one of the most commonly performed sling operations worldwide. A thin strip of polypropylene mesh is passed through a small vaginal incision, under the middle of the urethra, and up behind the pubic bone, with the ends emerging through two tiny incisions just above the pubic hairline. The mesh is then trimmed at skin level and left in place to support the urethra. The retropubic route has a long track record and strong long-term cure and improvement rates in major society guidelines.

Transobturator Mid-Urethral Sling (TOT/TVT-O)

In this variation, the sling is passed sideways through the obturator foramen (an opening in the pelvic bone) rather than up behind the pubic bone. Two small incisions are made in the groin instead of above the pubic bone. This route avoids passing instruments near the bladder and major retropubic blood vessels, which can lower certain risks. However, it can be associated with a higher chance of groin or thigh discomfort. Long-term effectiveness is broadly comparable to the retropubic approach in many studies, with some differences in risk profile.

Single-Incision Mini-Sling

This is a shorter sling placed entirely through a single vaginal incision, without skin incisions in the groin or above the pubic bone. It is designed to be less invasive and to cause less post-operative pain. Newer mini-slings have shown results comparable to standard mid-urethral slings in some recent studies, although the evidence base is younger than for retropubic and transobturator slings.

Autologous Fascial Sling

Instead of synthetic mesh, the sling is made from a strip of the patient’s own connective tissue, usually taken from the lower abdominal wall (rectus fascia) or thigh (fascia lata). This requires an additional incision to harvest the tissue and a longer operation. It is an important option for women who wish to avoid synthetic mesh, who have had previous mesh complications, or who have specific risk factors. AUA and EAU guidelines recognise the autologous fascial sling as a durable and effective alternative.

Male Sling

Male slings are used to treat mild to moderate stress incontinence after prostate surgery. A strip of mesh is placed under the urethra through a small perineal incision (between the scrotum and the anus) to compress and support it. For more severe leakage in men, an artificial urinary sphincter is generally preferred.

A Note on Mesh

Because synthetic mesh has been the subject of public discussion and regulatory review in several countries, it is worth addressing directly. Concerns have been raised about complications such as mesh exposure, pain, and difficulty with revision surgery, particularly in the context of mesh used for pelvic organ prolapse repair through the vagina — which is a different operation from a mid-urethral sling.

For stress urinary incontinence specifically, major urological societies including AUA and EAU continue to recommend mid-urethral synthetic mesh slings as a standard surgical option, while emphasising that patients should be fully informed about the material, possible risks, and non-mesh alternatives such as the autologous fascial sling, colposuspension, and bulking agents. Some countries have temporarily paused or restricted vaginal mesh procedures during regulatory reviews. In India, mid-urethral mesh slings remain widely used as a recognised treatment for stress urinary incontinence.

An informed discussion with your surgeon about which sling type is most appropriate — and why — is an important part of the decision.

Preparing for Sling Surgery

Once you and your surgeon have decided to proceed, several steps usually take place in the weeks before the operation.

Medical Preparation

• Routine blood tests, urine tests, and an ECG if indicated
• Anaesthetic review to plan general or regional (spinal) anaesthesia
• Review of medications — blood thinners, certain diabetes medications, and some herbal supplements may need to be adjusted or stopped before surgery
• Treatment of any urinary tract infection before the operation
• Optimisation of conditions such as diabetes, high blood pressure, or chronic cough

Lifestyle Preparation

• Stopping smoking ahead of surgery improves healing
• Weight management where relevant can improve outcomes
• Continuing pelvic floor exercises up to and after surgery is generally encouraged

Practical Preparation

• Arrange someone to take you home after the procedure and help during the first day or two
• Plan time off work — usually one to three weeks depending on the type of work
• Stock up on comfortable, loose-fitting clothing
• Avoid eating or drinking from the time advised before surgery (usually six to eight hours)

Your surgical team will give you specific instructions about which medications to stop, when to fast, and when to arrive at the hospital.

What Happens During Sling Surgery

Although techniques differ between sling types, the overall flow is similar:

1. Anaesthesia. You will receive general anaesthesia or regional (spinal/epidural) anaesthesia. Some single-incision mini-slings can be performed under local anaesthesia with sedation.
2. Positioning and preparation. You are positioned with the legs supported. The skin is cleaned, and a urinary catheter is placed to empty the bladder.
3. Incisions. A small incision is made in the front wall of the vagina just under the urethra. Depending on the sling type, additional small incisions are made above the pubic bone (retropubic), in the groin (transobturator), or none (single-incision).
4. Passing the sling. Using specially designed needles or guides, the surgeon passes the sling under the urethra and into the chosen tissue plane.
5. Tension adjustment. The sling is positioned loosely under the mid-urethra — it is not meant to lift or compress, only to support during pressure spikes. The tension is adjusted so that the urethra closes during a cough but urine can still pass freely afterwards.
6. Cystoscopy. In many cases, the surgeon passes a small camera into the bladder to confirm that the bladder and urethra have not been injured during sling placement.
7. Closure. The skin and vaginal incisions are closed with dissolvable stitches. The catheter may be left in place for a short period.

The operation itself usually takes 30 to 60 minutes. If other procedures — such as prolapse repair — are done at the same time, the total time will be longer.

Recovery and Healing

The First Day

• Most patients go home the same day or after one night in hospital
• Pain is usually mild and managed with simple painkillers
• The catheter is often removed before discharge; before going home, the team will check that you can empty your bladder satisfactorily
• Some patients have temporary difficulty urinating and may go home with a catheter for a few days

The First Two Weeks

• Light activities such as walking and gentle housework are encouraged
• Avoid lifting anything heavier than a few kilograms
• Avoid sexual intercourse, swimming, baths, and tampons during this period
• Some light vaginal discharge or spotting is normal
• Most people return to office-based work within one to two weeks

Two to Six Weeks

• Gradual return to normal activities
• Avoid strenuous exercise, heavy lifting, and high-impact sport for at least four to six weeks
• Sexual activity is usually resumed after about four to six weeks, once cleared at follow-up
• Pelvic floor exercises are usually restarted, often with physiotherapy guidance

Beyond Six Weeks

By around six weeks, most people are back to full normal activity. Final assessment of the surgical result is usually made at a follow-up visit between six weeks and three months. Improvements in continence are typically apparent immediately, but small refinements can continue as tissues fully heal.

Your surgical team will give you specific instructions tailored to your operation and recovery.

Risks and Complications

Sling surgery has a strong safety record, but no surgery is risk-free. Possible complications include:

Short-Term Risks

• Difficulty urinating — a temporary inability to empty the bladder, sometimes requiring short-term catheter use. In a small number of patients, the sling is too tight and needs to be loosened or cut.
• Urinary tract infection — usually treatable with antibiotics
• Bleeding or bruising — significant bleeding is uncommon
• Bladder or urethral injury during sling placement — usually identified and managed at the time of surgery using cystoscopy
• Pain in the groin, thigh, or pelvis — more often described with transobturator slings; usually settles within weeks
• Anaesthetic-related risks

Longer-Term Risks

• Persistent or recurrent stress incontinence — the sling does not fully resolve symptoms in every patient, and some people experience leakage again over time
• New overactive bladder symptoms — a sudden urge to urinate, frequency, or urge leakage, which may need additional treatment
• Voiding difficulty or incomplete bladder emptying
• Mesh exposure or extrusion — the mesh becoming visible or palpable through the vaginal wall. This is uncommon with mid-urethral slings but can occur and may require treatment.
• Mesh erosion into the bladder or urethra — rare
• Chronic pelvic, vaginal, or groin pain — uncommon but recognised
• Pain with intercourse (dyspareunia) for the patient or partner
• Need for further surgery — to adjust, partially cut, or remove the sling, or to treat recurrent incontinence

Major society guidelines emphasise that patients should be counselled about all of these possibilities — particularly mesh-related risks — before consenting to surgery. Choosing a surgeon experienced in female pelvic medicine or urogynaecology, and following post-operative instructions, reduces the chance of complications.

Life After Sling Surgery

Most patients see a clear improvement in stress urinary incontinence soon after surgery. Many people are able to:

• Cough, sneeze, and laugh without leakage
• Return to exercise and physical activity
• Stop or significantly reduce pad use
• Sleep without disturbance from bladder concerns
• Feel more confident in social, professional, and intimate situations

However, sling surgery is not a guarantee of perfect dryness, and certain habits help maintain results:

• Continue pelvic floor exercises. A strong pelvic floor supports the long-term result.
• Maintain a healthy weight. Significant weight gain can increase pressure on the pelvic floor.
• Treat chronic cough and constipation. Both put repeated strain on the repair.
• Avoid very heavy lifting where possible.
• Drink sensibly — not too little (which can irritate the bladder) and not excessive caffeine or alcohol.
• Discuss future pregnancy carefully. Pregnancy and vaginal delivery after a sling can stretch or weaken the support and may bring back symptoms. If you become pregnant after sling surgery, your obstetric team will discuss the safest plan for delivery.

Long-term follow-up may include a check at six weeks, three months, and then as needed. If new urinary symptoms develop later — such as recurrent leakage, urgency, pain, or difficulty emptying the bladder — a review with your urologist or urogynaecologist is recommended.

Frequently Asked Questions

How successful is sling surgery?

Mid-urethral sling procedures have some of the best long-term outcomes of any surgery for stress urinary incontinence, with high cure and improvement rates reported in guidelines from major urological societies. Individual results vary, and your surgeon can give you a more personalised estimate based on your anatomy, type of incontinence, and overall health.

Is sling surgery painful?

Most patients describe mild discomfort rather than severe pain, and it is usually controlled with simple painkillers. Some women feel groin or thigh tenderness for a few days after a transobturator sling. Persistent or worsening pain should be reported to your surgical team.

How long will the sling last?

Synthetic mid-urethral slings are designed to be permanent. Long-term studies show that the benefit lasts many years for most patients. A smaller proportion of patients experience return of leakage over time and may need further treatment.

Will I need a catheter after surgery?

A catheter is usually placed during surgery and often removed before you go home. Some patients need a short period of catheter use — from a day to a couple of weeks — if the bladder is slow to start emptying normally.

Can I have sex normally after sling surgery?

Most patients are advised to avoid intercourse for about four to six weeks while the vaginal incision heals. After that, sexual activity is usually comfortable. A small number of patients experience pain with intercourse and should report this so it can be evaluated.

Can I get pregnant after sling surgery?

Sling surgery does not affect the ability to conceive. However, pregnancy and vaginal delivery can put pressure on the repair and may bring back leakage. For this reason, many doctors suggest completing childbearing before sling surgery, although this is an individual discussion based on your priorities and symptoms.

What is the difference between a mesh sling and a non-mesh sling?

A mesh sling uses a strip of synthetic polypropylene tape. A non-mesh sling, such as an autologous fascial sling, uses a strip of the patient’s own tissue. Both are recognised surgical options. Mesh slings are shorter operations and have a long track record; autologous slings avoid synthetic material but require an additional incision. The right choice depends on your anatomy, history, and preferences after a full discussion with your surgeon.

Does sling surgery help urge incontinence?

Sling surgery is designed for stress incontinence. It is not a treatment for pure urge incontinence (overactive bladder). In mixed incontinence, where both stress and urge symptoms exist, sling surgery may help the stress component, but urge symptoms may need separate treatment.

Can men have sling surgery?

Yes. Male slings are used to treat mild to moderate stress incontinence after prostate surgery. For more severe leakage, an artificial urinary sphincter is generally preferred. The decision is made with a urologist experienced in male incontinence.

What happens if the surgery does not work?

If leakage persists or returns, further options may include a repeat or different type of sling, urethral bulking injections, colposuspension, or an artificial urinary sphincter in selected cases. A reassessment — usually including urodynamic testing — helps guide the next step.

Conclusion

Sling surgery is a well-established treatment for stress urinary incontinence. For many people, it brings a meaningful return of bladder control, confidence, and freedom in daily life. It is most appropriate when leakage is bothersome, when conservative measures have not been enough, and when the type of incontinence has been clearly identified.

Like any operation, it carries risks, and the choice between sling types — and between sling surgery and its alternatives — deserves a careful, informed discussion with a urologist or urogynaecologist who is experienced in pelvic floor surgery. With the right assessment, an appropriate technique, and good aftercare, sling surgery remains one of the most reliable options that modern urology offers for the everyday problem of stress urinary incontinence.