Can Urinary Tract Infection Cause Urinary Incontinence? What Carers Need to Know

How the Urinary System Works

Your urinary system is the body's drainage system for removing waste and extra fluid. The kidneys filter the blood to make urine, which travels down two thin tubes called ureters to the bladder. The bladder stores urine until you're ready to urinate, and then urine leaves the body through the urethra. The kidneys and ureters make up the upper urinary tract, while the bladder and urethra form the lower urinary tract.

Emptying the bladder is a normal process that also protects the urinary system, because each wee helps flush out bacteria that have entered the urinary tract. According to the US National Institute of Diabetes and Digestive and Kidney Diseases, all parts of the urinary tract need to work together in the right order for normal urination. Good bladder control also depends on nerve signals travelling between the brain and the bladder, telling the bladder muscle when to hold on and when to relax.



How a UTI Leads to Bladder Leakage

Most cases of urinary tract infection start when bacteria from the bowel, usually Escherichia coli (E. coli), travel up the urethra and infect the lining of the urinary tract. A bladder infection, also called cystitis, is the most common type of UTI. If left untreated, it can spread up to the kidneys and develop into a kidney infection.

Once bacteria settle in the urinary tract, the bladder lining becomes inflamed. That inflammation makes the bladder muscle irritable, so it can contract on its own in involuntary spasms. The result is a sudden, intense urge to wee, even when the bladder holds only a small amount of urine.

Urologist Dr Elayne Ooi, speaking with Continence Health Australia, explains that someone with a UTI may need the toilet every five to ten minutes instead of the usual three to four hours, a symptom known as urinary frequency. When the urge is too strong to hold before reaching the toilet, urine leaks. This is called urge incontinence.

For a person who needs help to walk, transfer or undress, even a short delay can mean an accident. A urinary tract infection that causes mild inconvenience for one person can lead to repeated episodes of urinary incontinence for someone who relies on support.

The good news is that UTI-related urge incontinence is usually short-lived. When a UTI is the true cause, symptoms typically settle within a day or two of starting antibiotics prescribed by a doctor.



How UTI Leakage Differs from Other Types of Incontinence

Urinary incontinence is the involuntary loss of urine, and it comes in several forms. A urinary tract infection mainly causes urge incontinence, but that's only one type. Knowing the differences helps explain why some leaks settle with treatment and others don't.



• Urge incontinence: a sudden, strong need to wee followed by leakage. Outside of infection, it is often linked to an overactive bladder, where the detrusor (bladder) muscle contracts when it shouldn't.
• Stress incontinence: leakage when pressure on the bladder rises, such as when coughing, sneezing, laughing or lifting. Weak pelvic floor muscles are a common cause.
• Overflow incontinence: the bladder doesn't empty properly, so it overfills and leaks. Causes include a blockage in the urinary tract, a weak bladder muscle or, in men, an enlarged prostate.
• Total incontinence: the bladder can't store urine at all, leading to constant leakage.
• Functional incontinence: the bladder works normally, but something else gets in the way of reaching the toilet in time, such as limited mobility, cognitive changes, communication difficulties or a toilet that's hard to get to. This type is especially relevant for people with disability.

Overflow problems deserve extra attention, because urine that sits in the bladder gives bacteria more time to grow. That raises the risk of repeat infections, which is why people with bladder emptying problems are more likely to experience recurrent UTIs. If leaks continue after a UTI clears, an NDIS continence assessment with a Continence Nurse Consultant can pinpoint which type is involved and what support will help.

Why People with Disability May Face a Higher Risk

Anyone can get a urinary tract infection, but some groups face an increased risk. Continence Health Australia notes that UTIs are more common in people using continence aids or catheters.

Other factors that can make infection more likely include sexual activity, a previous UTI, a family history of UTIs in women, diabetes and anything that stops the urinary tract from draining properly. For people with disability, several of these risk factors often overlap:



• Incomplete bladder emptying: neurological conditions such as multiple sclerosis and spinal cord injury can stop the bladder from emptying fully, raising the chance of both infection and developing urinary incontinence.
• Catheter use: about 80% of hospital-acquired UTIs are associated with indwelling urinary catheters, according to healthdirect. Anyone living with a catheter at home needs careful daily care to keep bacteria out of the urinary tract.
• Continence pads: sitting in wet or soiled pads increases bacterial exposure and can set up a cycle of recurring infections.
• Constipation: an over-full bowel presses on the bladder and can make it harder to empty.
• Communication barriers: if someone can't easily report UTI symptoms, an infection may go unnoticed for longer.

Signs of a UTI When Someone Can't Tell You

Common UTI Symptoms

The classic signs of a urinary tract infection include:



• a burning sensation or stinging when weeing
• a sudden, urgent need to go
• going more often than usual
• feeling like the bladder hasn't fully emptied
• cloudy, dark or strong-smelling urine.

Less Obvious Signs to Watch For

Many people with disability can't describe these symptoms, so carers need to watch for less obvious changes. Some people feel only mildly unwell or show unexplained changes in their bladder habits. Older people with a UTI can become confused or develop delirium.



Other signs to watch for include:



• a raised temperature, which is often the first sign in someone who is non-verbal
• new incontinence, or leaks that happen more often than usual
• restlessness, agitation or distress, especially around toileting
• touching, grabbing or holding the groin or lower tummy more than usual
• reluctance to use the toilet, or going far more often
• tiredness, reduced appetite or refusing food and drinks
• waking more often at night to wee
• sudden confusion, such as struggling with tasks that were easy a day or two earlier.

Support workers who know a person's usual routine are often the first to notice that something is off. Recording these changes in daily notes gives the GP useful information. Registered nurses who deliver NDIS nursing can also help teams set up bladder monitoring and clear escalation steps within a participant's care plan.

When to Get Medical Help

See a GP or other healthcare provider as soon as a urinary tract infection is suspected. A doctor will usually request a urine sample for testing, often a urine culture. This confirms the infection and identifies the bacteria so the right antibiotic can be prescribed. Pharmacy self-test kits can detect bacteria or abnormal cells, but they don't give enough information to diagnose a UTI.



Seek medical help promptly if the person has any of the following symptoms:



• back pain, fever or chills
• blood in their urine
• symptoms that don't improve within a few days.

These can signal that the infection has spread to the kidneys or is developing into sepsis. Some mild infections settle on their own within a few days, but this is less likely for someone with an underlying condition affecting their bladder or immune system. If someone can't pass urine at all, see a doctor immediately or go to the emergency department.

For advice, call the healthdirect helpline on 1800 022 222 or the National Continence Helpline on 1800 33 00 66. Kidney Health Australia, which supports people living with kidney diseases, also publishes a free UTI factsheet.



Practical Ways to Lower UTI Risk

Everyday Habits

Simple lifestyle habits can help prevent bacteria from settling in the urinary tract and support long-term bladder health. They make a real difference, especially for people who rely on others for personal care:



Keep fluids up

Drink enough fluids to keep urine pale yellow. Dr Ooi recommends drinking at least 1.5 litres of water daily to help flush out bacteria. Avoid cutting back on fluids to reduce leaks, as concentrated urine can make bladder problems worse. If a person has a fluid restriction, follow their doctor's advice.



Wipe from front to back

This helps stop E. coli bacteria from the bowel reaching the urethra. Support workers should follow it every time they assist with toileting.



Change pads and wet clothing promptly

Regular changes reduce bacterial exposure and protect the skin.



Choose breathable fabrics

Cotton underwear and breathable clothing reduce moisture around the urethra.



Allow time to empty fully

Sitting properly on the toilet and not rushing helps the bladder empty completely.



Prevent constipation

Fluids, fibre and regular movement all help.



Follow catheter care plans closely

Good hygiene and keeping the drainage bag below bladder level lower the risk of bacteria entering the urinary tract.



Managing Recurrent UTIs

Recurrent UTIs need a closer look. If a person keeps getting one urinary tract infection after another, their GP will usually investigate the cause and may suggest a mix of lifestyle changes and medical options. For people with frequent UTIs, these can include low dose antibiotics taken over a longer period, or other treatments such as methenamine hippurate or, for post-menopausal women, vaginal oestrogen.

You may also hear about cranberry juice. Continence Health Australia notes that cranberry may help in a high-dose, concentrated form, rather than as everyday cranberry juice. Cranberry can also interact with medicines such as warfarin, so always check with the person's GP or pharmacist before starting any supplement.



When Incontinence Doesn't Go Away After Treatment

If urinary incontinence continues after antibiotics, the urinary tract infection may not have been the full story. Persistent symptoms can point to resistant bacteria or another condition, such as an overactive bladder or interstitial cystitis (painful bladder syndrome), which may need a different treatment altogether. Recurring infections also need investigation to find the underlying cause.

Go back to the GP for review. From there, a Continence Nurse Consultant can assess how the urinary system is working, including bladder emptying and toileting routines, recommend suitable continence aids, and write a continence plan that support workers can follow day to day. For NDIS participants, continence assessments and continence aids may be funded through their plan when the incontinence relates to their disability.

Frequently Asked Questions