Urinary Tract Infection (UTI)

If you’ve ever experienced a UTI, you’ll know the tell-tale signs - an intense and constant urge or pressure to urinate followed by a burning pain when you do.

It’s one of the most common infections in humans, affecting around 1 in 2 women and 1 in 20 men during their lifetime. Urinary Tract Infections (commonly referred to as UTIs) can happen anywhere in the urinary tract and are very common in women, babies and the elderly.

UTIs occur when microbes (microscopic bacteria) or germs enter the urinary tract or bladder and multiply, causing a number of painful symptoms.

If left untreated, the infection can spread to your kidneys and other parts of your body, so it’s important to know the signs to look out for and seek treatment immediately.

Learn more about a UTI consultation here

What are the different types of UTIs?

Because UTI is a broad term relating to an infection of anywhere in the urinary tract (including in the kidneys, ureters, bladder, and urethra), there are different types of UTIs based on where the infection is:

Urethritis -Infection of the urethra

Cystitis -Infection of the bladder

Pyelonephritis -Infection of the kidneys

Vaginitis -Infection of the vagina

Prostatitis -Infection of the prostate (men)

How long does a UTI last?

Most UTIs can be cured by taking a course of antibiotics. Once treatment begins, symptoms usually go away within 24 to 48 hours. If you have a more severe infection, such as a kidney infection, symptoms may last longer even with treatment.

UTI

The type and severity of symptoms will vary from person to person. Depending whether a UTI is in the upper or lower urinary tract will also affect what symptoms are experienced. If you have a UTI, you may experience some or all of these symptoms:

  • Burning pain when urinating

  • Increased frequency of urination, without passing much urine

  • The feeling your bladder is full, even if you’ve only just gone

  • Pressure in your lower abdomen

  • Pain above the pubic bone

  • Pelvic pain (women) or rectal pain (men)

  • Urine that is cloudy, dark or has a strong odour

  • Blood in your urine – if you notice this, see your GP straight away

  • Feeling tired, shaky, confused or weak – common in older women

Kidney infection

If a UTI has reached the kidneys, seek medical attention immediately as this can lead to more serious health conditions. In addition to the above UTI symptoms, someone with a kidney infection may also experience:

  • Fever or chills

  • Lower abdominal pain

  • Back pain

  • Vomiting

What causes a UTI?

Our kidneys are responsible for filtering waste product through our urine, through a tube called a ‘ureter’ which connects to the bladder.

When urine leaves the kidney through the ureters and enters the bladder, our body receives the signal to wee. Urine leaves our body through another tube called a ‘urethra’ (different to ureter).

Urinary tract infections happen when a microbe enters the urinary tract (often through the urethra, but sometimes through the bloodstream) and multiplies, causing inflammation, pain, and other nasty side effects.

Bacteria can get into the urethra several ways:

  • The most common bacteria to cause a UTI is Escherichia coli (E. coli), which is spread from the anus to the urethra. This can occur if you wipe incorrectly and accidentally transfer faecal bacteria into the urethra

  • Yeast getting into the urinary tract, such as from thrush. However sometimes treating a UTI with antibiotics can lead to a yeast infection.

  • Sexual transmission – it can be shared between contact with partners

  • Not drinking enough water – drinking plenty of water means our bladder tends to empty more frequently, and helps to flush out any bacteria from lingering in the urinary tract walls

  • Poor bathroom hygiene (such as wiping from back to front) may contribute

Can a UTI heal on its own?

Very mild UTIs may heal on their own within a few days. However, most of the time, antibiotics are needed to treat a UTI. Left untreated, a UTI can become more serious.

It’s possible for bacteria to enter the bloodstream which can be life-threatening.

Being female

Women are at much higher risk of UTIs, because the female urethra is only four centimetres long (versus the average male urethra of 18-20cm length>) and very close to the vagina and anus, so bacteria has a much shorter distance to travel to enter the bladder.

Being sexually active

Sexually active women are vulnerable, as bacteria can be easily spread from outside.

Babies

Babies are at higher risk of UTIs. UTIs in children should be investigated as they may indicate a more serious underlying condition.

Age

More common in the elderly, especially elderly women.

Being sedentary

Lack of mobility or extended bed rest.

Previous UTIs

Previous history of UTIs will increase the chance of recurring UTIs.

Urinary catheters

Ongoing use of urinary catheters.

Urinary tract blockages

Such as kidney stones, enlarged prostate, and certain cancers.

Diabetes

Especially when managed poorly.

Pregnancy

Pregnancy can cause changes in the urinary tract.

Weakened immunity

Weakened immunity can make a person more vulnerable to infection.

Can recurrent UTIs be a sign of cancer?

Recurrent UTIs are usually not a sign of cancer but they can be linked to cancer. Many other conditions can cause similar symptoms to a UTI.

If you experience recurrent symptoms, see your doctor to ensure you receive the right diagnosis and treatment for your condition.

Is a UTI contagious?

No. UTIs are not a sexually transmitted infection (STI) and are not ‘contagious’. However, the bacteria can be passed between partners through sexual contact occurring in or near the areas containing bacteria, so it’s important to see your GP and treat both people as soon as possible.

While most UTIs are not contagious and can’t be passed from person to person, some types of sexually transmitted infections (STIs), such as chlamydia, can cause urethritis (swelling and irritation of the urethra).

How to treat a UTI?

UTI’s are treated with antibiotics prescribed by a GP. If you think you have a UTI (particularly if you think it’s a bladder or kidney infection), it’s important to seek urgent medical attention as it can help prevent the infection from spreading or getting worse. If you’re presenting with UTI symptoms, your doctor will perform a urine test to identify which microbe is present and the most effective antibiotics to treat it. In most cases, a UTI is easy to treat and relatively quick to clear up with a course of antibiotics.

What happens if you don’t treat a UTI?

Some UTIs may go away on their own, however the symptoms can be very unpleasant to suffer through, and it can be risky to leave a UTI untreated. An untreated urinary tract infection can grow worse over time and spread to the kidneys and other parts of your body. In rare cases, it can even spread to the bloodstream which can be life threatening. Don’t ignore your symptoms – seek medical help.

How to help prevent a UTI?

UTIs are often unavoidable and almost always unpleasant. But prevention is always better than a cure, and there’s plenty of things you can do to help prevent getting a UTI in the first place. A few approaches some women find helpful include*#:

  • Drink lots of water to flush the urinary system, aiming for 6-8 glasses (or 1.5-2L) per day

  • Wipe from front to back (vagina towards bottom) after going to the toilet

  • Empty your bladder before and after sex

  • Empty bladder completely when you go to the toilet

  • Avoid holding on to a full bladder – go as soon as you feel the urge to urinate as the longer the urine is held in the bladder, the more time bacteria can grow

  • Treat vaginal infections (like thrush) immediately

  • Avoid using creams that kill sperm (spermicides), and talk to your Doctor about different birth control options instead

  • Take care to wash thoroughly each day, and avoid using douches or feminine hygiene sprays

  • Take showers or limit baths to 30 minutes

  • Wear cotton underwear and avoid tight-fitting pants that trap moisture. Remember to change out of swimwear or fitness wear quickly.

Can cranberry juice prevent a UTI?

Research on how effective cranberry juice is in treating or preventing UTIs is mixed*. It has been a popular method in the past as cranberries contain a substance that help prevent the E. coli bacteria from attaching to cells in the wall of the urinary tract. If this is something you’re trying, be sure to let your Doctor know as cranberry juice can impact the effectiveness of some antibiotics.

When to seek help?

Urinary tract infections can become very dangerous if left untreated. If you think you have a UTI, it’s important to seek medical attention immediately. Early treatment of urinary infection can help prevent infection spreading to the bladder or kidneys which are both serious issues.

When to seek help?

Urinary tract infections can become very dangerous if left untreated. If you think you have a UTI, it’s important to seek medical attention immediately. Early treatment of urinary infection can help prevent infection spreading to the bladder or kidneys which are both serious issues.

At MediADVICE, we have a range of products to assist with and provide relief of urinary tract infections.

Our team of friendly pharmacists are on hand to discuss any concerns, provide expert advice and recommend products that may be right for you.

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A note on language and gender
MediADVICE recognises that gender is not binary and that not everyone identifies with the terms male or female. However, when referring to urinary tract infection, a person's physical and anatomical structures are important to determine severity and treatment options. For this reason, we have used the terms women, men, female and male on this page.
Disclaimer
General advice only – this information should not replace the information provided to you by your health care professional. If symptoms are severe or persist, please speak to your health care professional. Information current as of date of publishing.
Sources
1Continence Foundation of Australia, Urinary Tract Infection (UTI),https://www.continence.org.au/urinary-tract-infection-uti
2NSW Emergency Care Institute, Urinary tract infection (UTI) in women,https://aci.health.nsw.gov.au/networks/eci/clinical/ed-factsheets/urinary-tract-infection-uti-in-women
3Pharmaceutical Society of Australia, Urinary tract infection (Cystitis),https://www.psa.org.au/wp-content/uploads/2023/02/4254-FC-Urinary-tract-infection_ekiosk.pdf
4Wynn J, Homewood D, Tse V, Fong E, Roberts MJ, Chung E, Dowling C. What to do about recurrent urinary tract infections: A review of evidence behind emerging therapies. Aust J Gen Pract. 2024 May;53(5):265-273. doi: 10.31128/AJGP-10-23-7004. PMID: 38697057.https://www1.racgp.org.au/ajgp/2024/may/what-to-do-about-recurrent-urinary-tract-infection
*https://www.betterhealth.vic.gov.au/health/conditionsandtreatments/urinary-tract-infections-uti
#https://www.womenshealth.gov/a-z-topics/urinary-tract-infections
^https://www.healthline.com/health/urinary-tract-infection-adults
>https://pubmed.ncbi.nlm.nih.gov/18778496/
<https://www.healthline.com/health/yeast-infection-vs-urinary-tract-infection
>>https://www.ncbi.nlm.nih.gov/books/NBK537047/