Two of the most common types of urinary incontinence in women look totally different from the inside. One arrives with no warning the moment you cough, sneeze, or laugh. A small leak, often only a teaspoon, but enough that you've started crossing your legs every time someone tells a joke. The other builds up to an overwhelming urge to pass urine that you can't quite get to the toilet in time, sometimes losing a more substantial amount.
The first is called stress incontinence. The second is urge incontinence. They're driven by different anatomy, treated differently, and constantly confused with each other. Many of the women I see in clinic aren't sure which type they have, and a substantial number have both. Knowing which type you have changes the entire treatment plan.
What is the difference between urge and stress incontinence?
Stress incontinence is leakage triggered by physical pressure on the bladder. Coughing, sneezing, lifting, jumping. The pelvic floor and urethral closure system aren't strong enough to hold the urethra closed against the sudden rise in abdominal pressure. Urge incontinence is leakage triggered by an overwhelming urge to pass urine that arrives faster than you can get to the toilet. The two have different causes and different treatments.
In one sentence: stress incontinence is a problem with the urethral closing mechanism. Urge incontinence is a problem with the bladder's signalling. Both are common, both are treatable, and they often coexist.
What are the 4 types of incontinence?
Stress and urge are the two most common in women, but they're not the only types. The four commonly recognised types of urinary incontinence are:
- Stress incontinence - leakage triggered by a sudden rise in abdominal pressure (cough, sneeze, lift, jump). The urethral closure system can't match the pressure surge.
- Urge incontinence - leakage triggered by an overwhelming urge to pass urine that arrives faster than you can reach the toilet. The bladder wall contracts involuntarily.
- Mixed incontinence - features of both stress and urge. Very common in women, especially postpartum and through perimenopause.
- Overflow incontinence - leakage because the bladder can't fully empty and eventually overflows. Rare in women, more common in men with prostate issues, but sometimes seen in women with nerve damage or severe pelvic organ prolapse.
There are also some less-common categories clinicians talk about, such as functional incontinence (leakage because of mobility or cognitive barriers rather than the bladder itself) and transient incontinence (short-term leakage triggered by a specific reversible cause like a UTI). For most women reading this, though, the question is whether you have stress, urge, or mixed. Those are the three that respond to pelvic floor physiotherapy.
Stress incontinence is leakage of urine that happens during physical activity. Anything that raises abdominal pressure suddenly is a possible trigger. The most common are:
- Coughing or sneezing
- Laughing
- Lifting (children, groceries, weights)
- Jumping, running, or any impact sport
- Sometimes simply standing up from a chair
The mechanism is mechanical. Urine is held in the bladder by the urethral sphincter and the pelvic floor muscles below it. When abdominal pressure rises (during a cough, for example), it pushes downward on the bladder. If the urethral closure system can't generate enough resistance to match the sudden pressure, urine leaks out.
Why does the closure system underperform? In women, the most common reasons are:
- Pregnancy and vaginal delivery - stretching of the pelvic floor and connective tissue.
- Perimenopause and menopause - falling oestrogen weakens the urethral lining and the surrounding tissues. See what oestrogen changes do to the pelvic floor for more on the hormonal piece.
- Chronic cough - repeatedly stresses the system, often missed as a contributor.
- High-impact exercise without a conditioned pelvic floor - common in returning-to-running postpartum.
- Connective tissue genetics - some women have more elastic ligaments than others, which affects the urethral support angle.
Treatment for stress incontinence is mechanical too. Strengthen the pelvic floor, address the urethral support, and in some cases add a vaginal pessary or surgical sling for cases that don't respond to physiotherapy.
What is urge incontinence?
Urge incontinence is the leakage that happens because the bladder signals an overwhelming urge to empty itself before you can reach the toilet. The trigger isn't physical pressure from outside. It's the bladder itself contracting involuntarily during filling.
In medical terms this is detrusor overactivity. The muscular wall of the bladder squeezes when it isn't supposed to, often when only a small amount of urine is present. The brain receives a strong "must go now" signal that's disproportionate to the actual volume in the bladder. If the urge wins out before you reach the toilet, urine escapes.
Common triggers include:
- Walking up to your front door (the classic "key-in-the-door" urgency)
- Hearing running water (taps, rain, showers)
- Cold weather
- Stress and anxiety
- Bladder irritants like caffeine, carbonated drinks, and artificial sweeteners
Urge incontinence is the leakage component of overactive bladder syndrome. You can have OAB without leaking, and you can have urge incontinence without it being part of full-blown OAB. For more on the broader pattern, see the overactive bladder symptoms guide.
Can you have both at the same time?
Yes. The combination is called mixed incontinence and it's common. A substantial proportion of women with urinary incontinence have features of both types: leakage on cough or sneeze, plus leakage triggered by sudden urgency. The two often coexist after vaginal delivery, in perimenopause, and with age generally.
The challenge with mixed incontinence is that the treatment priorities can pull in different directions. Pelvic floor strengthening (which targets stress incontinence) needs to be paired carefully with bladder retraining (which targets urge incontinence), and the order matters. Most pelvic physios will start by treating whichever component is more bothersome to the patient, while keeping an eye on the other.
If you've tried kegels for what you assumed was straightforward stress incontinence and they made things worse, mixed incontinence with an overactive pelvic floor component is a likely culprit. That's a clinical scenario where doing more of the same makes everything harder, and an assessment is the answer.
How do you differentiate between stress and urge incontinence?
A few clues that point one way or the other:
| Clue | More likely stress | More likely urge |
|---|---|---|
| What triggers a leak | Cough, sneeze, lift, laugh, jump | Sudden urge, hearing water, getting close to home |
| How much you leak | Usually small (teaspoon to tablespoon) | Can be larger, sometimes a full void |
| Warning before the leak | None, it's instant with the trigger | Yes, a strong urge precedes the leak |
| Time of day | Often during physical activity | Any time, sometimes worse late afternoon |
| Affects sleep | Rarely | Sometimes, paired with nocturia |
A bladder diary is the single most useful at-home diagnostic tool. Write down when you leak, what you were doing, how much came out, and how strong the urge was beforehand. Three days is enough to see the pattern.
A pelvic floor assessment with a pelvic physiotherapist will then confirm which type predominates. Internal or external assessment tells us about strength, coordination, and tone of the pelvic floor, all of which are directly relevant to the leakage pattern. The assessment also catches mixed incontinence early, which protects you from a treatment plan that addresses only half the problem.
What treatments work for each type?
The treatments are quite different.
Stress incontinence
- Pelvic floor muscle training - the gold standard, supported by the Cochrane review on pelvic floor muscle training in women (Dumoulin et al., 2018).
- Biofeedback trainers - help you confirm you're doing kegels correctly and consistently at home, once a physio has cleared you to strengthen.
- Vaginal pessaries - support the urethra mechanically. Useful for women who haven't responded fully to physio or are unable to commit to a long programme.
- Topical vaginal oestrogen - for postmenopausal women, supported by the Cochrane review on local oestrogen for urinary incontinence in postmenopausal women.
- Continence surgery (mid-urethral slings) - for severe cases that don't respond to conservative treatment. Specialist territory.
Urge incontinence
- Bladder retraining - the evidence-based first-line treatment. See the bladder retraining guide for the full schedule.
- Pelvic floor physiotherapy - assessment first, because if your pelvic floor is overactive, doing kegels will worsen the urgency.
- TENS - tibial or sacral nerve stimulation. Effective adjunct for urgency that hasn't fully resolved with retraining alone.
- Bladder irritant review - caffeine, carbonated drinks, artificial sweeteners.
- Topical vaginal oestrogen - for postmenopausal women, also supported for urge symptoms.
- Anticholinergics, mirabegron, or intradetrusor botulinum toxin - GP and specialist territory, usually after first-line treatments have been given a fair trial.
Mixed incontinence
- Combine pelvic floor training and bladder retraining, sequenced based on which component is more bothersome.
- An experienced pelvic physio is invaluable here, because mis-sequencing can stall both treatments. If you have an overactive pelvic floor, traditional strengthening kegels are off the table until that's addressed first.
When should I see someone?
If incontinence is affecting any aspect of your daily life (exercise, work, sex, sleep, social plans), see a pelvic physiotherapist. You don't need a GP referral in Australia. A first appointment usually involves a thorough history, a bladder diary review, and a pelvic floor assessment that determines which type of incontinence is driving things.
See your GP first or urgently if you notice:
- Blood in your urine - any amount, any colour. Always warrants a urine test.
- Pain with urination - particularly if it's new.
- Fever or back pain - possible kidney involvement.
- A sudden change in bladder function - new incontinence, new inability to empty, or symptoms appearing over days rather than months.
- Any neurological symptoms - weakness, numbness, bowel changes, or saddle anaesthesia (numbness in the inner thighs or perineum). These are red flags.
Incontinence is incredibly common and incredibly treatable, but the type matters. Spending three months on kegels for what turns out to be urge incontinence won't fix the problem. It might even worsen it if your pelvic floor is overactive. Spending the same three months on bladder retraining for what's actually pure stress incontinence won't move the needle either. A proper assessment takes one appointment and saves you months. Whichever type you have, the trajectory from "managing it daily" to "barely thinking about it" is shorter than most women expect.
Clinical references and further reading
- Continence Health Australia (formerly the Continence Foundation of Australia) - resources on stress, urge, and mixed incontinence: continence.org.au
- Healthdirect Australia (Department of Health) - urinary incontinence overview: healthdirect.gov.au
- International Continence Society - standardised definitions for stress, urge, and mixed urinary incontinence
- NICE Guideline NG123 - urinary incontinence and pelvic organ prolapse in women: management
- Cochrane Database of Systematic Reviews - pelvic floor muscle training for urinary incontinence in women (Dumoulin, Cacciari, Hay-Smith, 2018); local oestrogen for urinary incontinence in postmenopausal women
- Royal Australian College of General Practitioners (RACGP) - primary-care guidance on urinary symptoms: racgp.org.au
This article is general educational information and does not replace individual clinical assessment. If your symptoms are new, severe, or changing, please consult your GP or a registered pelvic health physiotherapist.
