Patient education
Urinary Tract Infections
A urinary tract infection (UTI) happens when bacteria enter the urinary system — the bladder, urethra, ureters or kidneys. Most UTIs are simple to treat, but some travel upwards to the kidneys and need prompt attention.
The basics
Where can an infection occur?
The urinary tract runs from the kidneys down to the bladder and out through the urethra. Infection can settle at different points along this path.
Bladder (cystitis) — the most common
Urethra (urethritis)
Ureters — less common
Kidneys (pyelonephritis) — most serious
Sometimes found on a urine test without symptoms
Most lower UTIs respond well to treatment
Recognising it
What does a UTI feel like?
Symptoms depend on where the infection sits. Bladder infections are uncomfortable; kidney infections can make you genuinely unwell.
Bladder infection
Burning or pain while passing urine, needing to go often and urgently, cloudy or strong-smelling urine, and lower abdominal discomfort.
Kidney infection
Fever and chills, pain in the side or back, nausea or vomiting — sometimes with bladder symptoms too. This needs same-day medical attention.
In older adults
Symptoms can be less typical — new confusion, weakness or a fall may be the only signs. A low threshold for testing helps.
Who is more likely to get a UTI?
Anyone can get a UTI, but some situations make infection more likely.
Diagnosis & treatment
How UTIs are confirmed and treated
Diagnosis is usually straightforward — the key is using the right antibiotic for the right length of time.
- 01
Urine test
A simple dipstick and microscopy look for signs of infection. A urine culture identifies the exact bacteria and which antibiotics will work.
- 02
Antibiotics
Most bladder infections clear with a short course. Kidney infections need longer treatment, and sometimes hospital care if you are vomiting or very unwell.
- 03
Completing the course
Always finish the full course even if you feel better after a day or two — stopping early lets bacteria survive and return.
- 04
Further evaluation if recurrent
Repeated infections — or any UTI in men or children — may need an ultrasound or further tests to look for stones, blockage or incomplete bladder emptying.
Avoid self-medicating with leftover antibiotics. The wrong antibiotic, or the wrong duration, breeds resistance and makes future infections harder to treat.
Prevention
Stopping infections from coming back
Simple daily habits genuinely reduce recurrence — especially for people who have had several infections.
If infections keep returning despite these measures, ask your doctor whether a specialist evaluation or preventive strategy is appropriate for you.
Everyday prevention
- Drink enough water through the day
- Don't delay or hold urine for long periods
- Pass urine after sexual intercourse
- Wipe front to back after using the toilet
- Avoid unnecessary or prolonged catheter use
- Keep diabetes well controlled
When should you seek medical help?
See a doctor promptly if you have
- Burning or pain with urination that persists
- Fever with back or side pain
- Blood in the urine
- Symptoms during pregnancy
- UTI symptoms with diabetes or a single kidney
- Infections that keep coming back
Seek emergency care for
High fever with shaking chills, confusion, vomiting that prevents keeping fluids or medicines down, or severe back pain — these can signal a kidney infection spreading to the blood.
The most important message
Most UTIs are simple to treat — but kidney infections and recurrent UTIs deserve proper evaluation, not just repeated antibiotics.
Frequent infections? A structured evaluation can find the cause.
If you are concerned about your kidney health, speak with a qualified healthcare professional. This information is for patient education and does not replace individual medical advice.