The most common UTI symptoms are a burning feeling when you pee (kencing sakit), needing to pee often or urgently, feeling that your bladder never fully empties (kencing tidak lawas), and cloudy or strong-smelling urine. A urinary tract infection (UTI) is very common: almost half of all women will have at least one in their lifetime, and many will have more than one. Most UTIs are simple bladder infections that a doctor can treat with a short course of antibiotics. But a fever, back or side pain, or vomiting can mean the infection has reached the kidneys, which needs medical care the same day. This guide explains the symptoms, causes, how UTIs are diagnosed and treated, and how to tell them apart from vaginal infections.
What are the symptoms of a UTI?
Most UTIs in women are infections of the bladder (cystitis). The typical symptoms are:
- Burning or stinging when you pee (kencing sakit, also called dysuria).
- Needing to pee often, sometimes every few minutes, but passing only small amounts.
- A sudden, strong urge to pee that is hard to hold.
- Feeling that your bladder is not empty even after you have just gone (kencing tidak lawas).
- Cloudy, dark or strong-smelling urine.
- Blood in the urine, which may look pink, red or brown.
- Pain or pressure in the lower belly, just above the pubic bone.
Not every symptom has to be present. According to a review of diagnostic studies published in JAMA, burning when you pee combined with needing to pee often, without any vaginal discharge or irritation, makes a UTI very likely: in that situation the probability is more than 90%. Older women may have fewer of the classic symptoms and may instead feel generally unwell or become confused, which is worth keeping in mind for elderly family members.
Warning signs: when a UTI needs urgent care
A bladder infection can travel up to the kidneys (pyelonephritis). See a doctor the same day if you have a UTI with any of these:
- Fever or chills
- Pain in your back or side, just below the ribs
- Nausea or vomiting
- Pregnancy, because UTIs in pregnancy carry a higher risk of kidney infection and early delivery
- Symptoms that do not improve within 48 hours of starting treatment, or that return soon after
Go to the emergency department if you feel very unwell, are confused or drowsy, or cannot keep fluids down. Men, children and people with diabetes, a weakened immune system, kidney problems or a urinary catheter should always see a doctor for UTI symptoms, as their infections are treated as more complicated.
What causes a UTI, and who is at higher risk?
Most UTIs happen when bacteria from the bowel, most often E. coli, reach the urethra and travel up into the bladder. Women get UTIs far more often than men, largely because the female urethra is short and close to the anus. Things that raise the risk include:
- Sex, which can push bacteria towards the urethra (this is why UTIs are common after starting a new relationship)
- Not drinking enough and holding urine for long periods, common in hot weather and busy workdays
- Spermicides and diaphragms used for contraception
- Pregnancy
- Menopause, as lower oestrogen changes the tissues and bacteria of the vagina and urethra
- Diabetes, especially when blood sugar is not well controlled
- A urinary catheter or problems that stop the bladder emptying fully, such as kidney stones
A UTI is not a sexually transmitted infection, and it is not caused by poor personal hygiene. Some STIs, such as chlamydia, can cause burning when you pee, which is one reason testing matters if symptoms are unusual.
UTI or vaginal infection?
Burning and discomfort "down there" are not always a UTI. Vaginal infections can feel similar but need different treatment:
The same JAMA review found that vaginal discharge or vaginal irritation make a UTI less likely. If those are your main symptoms, read our guides to vaginal yeast infection (thrush) and vaginal discharge (keputihan): what is normal and what is not. It is also possible to have a UTI and a vaginal infection at the same time, so get checked if you are unsure.
How is a UTI diagnosed?
- Your symptoms. For a healthy, non-pregnant woman with typical symptoms, a doctor can often diagnose a simple bladder infection from the history alone.
- Urine dipstick test. A quick test at the clinic checks for signs of infection, such as white blood cells and nitrites.
- Urine culture. A lab grows the bacteria from your urine sample and checks which antibiotics work against them. It is recommended if you are pregnant, the infection keeps coming back, symptoms are unusual, or the first treatment did not work.
- Further tests, such as an ultrasound, are usually only needed for repeated or complicated infections.
Bacteria in the urine without any symptoms (asymptomatic bacteriuria) usually does not need antibiotics, except in pregnancy and before some urological procedures. Your doctor will decide based on your situation.
How is a UTI treated?
A simple bladder infection is usually treated with a short course of antibiotics prescribed by a doctor. Antibiotics are prescription medicines in Malaysia, so see a doctor at a clinic or klinik kesihatan rather than using leftover tablets or medicine bought without advice. A few practical points:
- Take the full course exactly as prescribed, even if you feel better after a day or two.
- Drink enough water to keep your urine pale, unless your doctor has told you to limit fluids.
- Pain relief such as paracetamol can ease discomfort while the antibiotics work; ask a pharmacist what is suitable for you.
- Go back to the doctor if you are not better within 48 hours, or if the symptoms return soon after finishing treatment.
Kidney infections, UTIs in pregnancy and complicated UTIs need different antibiotics, sometimes for longer, and occasionally hospital care.
UTIs that keep coming back
About a quarter of women who have one UTI go on to have repeat infections. A recurrent UTI is usually defined as two or more infections in six months, or three or more in a year, with at least one confirmed by a urine culture. If this sounds like you, see a doctor to confirm the diagnosis with a culture and to discuss prevention. Options depend on your situation and can include changes in daily habits, vaginal oestrogen after menopause, non-antibiotic options, and in some cases low-dose antibiotics taken for a period of time.
How to lower your risk
- Drink enough water through the day. A 2024 review of the evidence for a German clinical guideline found that drinking more fluid each day lowered infection rates in the short term.
- Do not hold your urine for long periods, and empty your bladder fully.
- Pee soon after sex.
- Wipe from front to back after using the toilet.
- Avoid spermicides if you get UTIs often, and talk to your doctor about other contraception.
- Keep the intimate area simple: water is usually enough for the outer area, and you should never wash inside the vagina. Our guide on how to choose a feminine wash explains what to look for if you use one.
Where cranberry fits. Cranberry is not a treatment for an active UTI. For women who get UTIs often, reviews of the research suggest cranberry products may modestly lower the risk of repeat infections. Our guides to cranberry probiotics and cranberry juice for UTI prevention explain what the evidence says and how to choose a product. Drann's Cran-Max cranberry probiotics are a daily supplement to support urinary tract health; if you have UTI symptoms now, see a doctor first.
Frequently asked questions (FAQ)
What are the first signs of a UTI?
The most common early signs are a burning or stinging feeling when you pee (kencing sakit), needing to pee often or urgently, passing only small amounts, a feeling that your bladder is not empty (kencing tidak lawas), and cloudy or strong-smelling urine. Some women also feel pressure or pain in the lower belly.
When is a UTI an emergency?
See a doctor the same day if you have a fever or chills, pain in your back or side below the ribs, nausea or vomiting, or if you are pregnant. These can be signs that the infection has reached the kidneys. Go to the emergency department if you feel very unwell, confused or cannot keep fluids down.
Can a UTI go away on its own?
Some mild bladder infections in otherwise healthy women do settle without antibiotics, but it is not possible to tell in advance which ones will. Because an untreated infection can spread to the kidneys, see a doctor if symptoms are bothersome, last more than a day or two, or come with any warning signs.
How is a UTI diagnosed?
A doctor usually diagnoses a simple bladder infection from your symptoms, often with a quick urine dipstick test. A urine culture, which identifies the bacteria and the antibiotics that work against them, is recommended if you are pregnant, the infection keeps coming back, or treatment did not work.
How can I tell a UTI from a yeast infection?
A UTI mainly causes urinary symptoms: burning when you pee, frequent urges and cloudy urine. A vaginal yeast infection mainly causes itching and a thick white discharge. Having vaginal discharge or itching makes a UTI less likely, and a doctor can test for both if you are unsure.
Is a UTI a sexually transmitted infection?
No. Most UTIs are caused by bacteria from the bowel, such as E. coli, reaching the urethra. Sex can push bacteria towards the urethra and trigger a UTI, but it is not passed between partners like an STI.
Can cranberry treat a UTI?
No. Cranberry products are not a treatment for an active infection. Research suggests they may help reduce the risk of repeat UTIs in women who get them often, but if you have symptoms now, see a doctor.
Disclaimer
This article is for general information only and is not a substitute for advice, diagnosis or treatment from a doctor or pharmacist. If you are unsure about your symptoms, please get checked.
References
- Bent S, et al. Does this woman have an acute uncomplicated urinary tract infection? JAMA. 2002;287(20):2701-10.
- Foxman B. Epidemiology of urinary tract infections: incidence, morbidity, and economic costs. Dis Mon. 2003;49(2):53-70.
- Gupta K, Grigoryan L, Trautner B. Urinary tract infection. Ann Intern Med. 2017;167(7):ITC49-ITC64.
- Advani SD, et al. State-of-the-art review: recurrent uncomplicated urinary tract infections in women. Clin Infect Dis. 2025;80(3):e31-e42.
- Schmiemann G, et al. The diagnosis, treatment, and prevention of recurrent urinary tract infection. Dtsch Arztebl Int. 2024;121(11):373-382.
- Kwok M, et al. Guideline of guidelines: management of recurrent urinary tract infections in women. BJU Int. 2022;130 Suppl 3:11-22.
