Urinary tract infections in adults (2024)

Urinary tract infections (UTIs) are very common. Most UTIs are caused by bacteria and they can be painful and uncomfortable. But they usually pass within a few days or can be easily treated with a course of antibiotics. UTIs are more common in women than men.

Symptoms of urinary tract infections

The symptoms of an infection in your upper urinary tract (kidney and ureters) are different from symptoms of infection in your lower urinary tract (bladder and urethra).

However, in some cases you may notice the symptoms of both, as one can spread to the other.

Symptoms of a UTI are similar to those of many other conditions and don't necessarily mean you have an infection.

Lower urinary tract infection

Symptoms of a lower UTI can include:

  • feeling a strong urge to urinate (pee) and more often than usual, a constant, dull pain in the pubic region and pain when urinating (dysuria)
  • cloudy urine (pee) or blood in your urine (haematuria)
  • urine that smells unusually unpleasant
  • back pain
  • a general sense of feeling unwell

Upper urinary tract infection

Symptoms of an upper UTI can include:

  • pain and discomfort in your side, lower back or around your genitals
  • a high temperature (it may reach 39.5C or 103.1F)
  • shivering or chills
  • feeling very weak or tired
  • loss of appetite
  • feeling sick or being sick
  • diarrhoea

Treating urinary tract infections

Your recommended treatment plan by your GP will depend on whether your infection is in the upper or lower urinary tract.

Both types of urinary tract infection can usually be treated at home using a course of antibiotics.

If an upper UTI is more serious or there is increased risk of complications, you may need hospital treatment.

When to seek medical advice

You may find your UTI symptoms are mild and pass within a few days. However, you should see your GP if you find your symptoms very uncomfortable or if they last for more than five days.

Also see your GP if you have a UTI and:

  • you develop a high temperature (it may reach 39.5C or 103.1F)
  • your symptoms suddenly get worse
  • you are pregnant
  • you have diabetes

Aboutthe urinary tract

The urinary tract is where your bodymake and get rid of urine. It's made up of:

  • the kidneys – two bean-shaped organs, about the size of your fists, that make urine out of waste materials from the blood
  • the ureters – tubes that run from the kidney to the bladder
  • the bladder – where urine is stored until you go to the toilet
  • the urethra – the tube from the bladder through which urine leaves the body

Causes ofurinary tract infections

Most urinary tract infections (UTIs) are caused by bacteria that live in the digestive system.

If these bacteria get into the urethra (the tube where urine comes out), they can cause infection. It's thought the bacteria can spread from the skin around the anus to the urethra.

Women are more likely to develop a UTI than men. This is because a woman's urethra is located closer to the anus than a man's, which makes it easier for bacteria from the anus to reach the urethra.

Preventing urinary tract infection

You can reduce your chances of developing a UTI by keeping your bladder and urethra (the tube that allows urine to pass out of your body) free from bacteria.

You can help prevent an infection by:

  • drinking plenty of fluids
  • keeping your genitals clean
  • treating any constipation

Toilet tips

To help keep your urinary tract free from bacteria:

  • go to the toilet as soon as you feel the need to urinate (to pee), rather than holding it in
  • wipe from front to back after going to the toilet
  • practice good hygiene by washing your genitals every day and before having sex
  • empty your bladder after having sex
  • if you're a woman, avoid ‘hovering’ over a toilet seat as it can result in your bladder not being fully emptied

Diaphragms and condoms

If you use a diaphragm and have recurring UTIs, you might want to consider changing to another method of contraception. This is because the diaphragm may press on your bladder and prevent it emptying completely when youurinate.

If you get recurring UTIs and you usecondoms, try using condoms that don't have a spermicidal lubricant on them– it will say whether it does on the packet.

Spermicidal lubricant can cause irritation and may make it more likely that you'll experience symptoms similar to a UTI.

More useful links

  • How to use your health services

The information on this page has been adapted from original content from the NHS website.

For further information seeterms and conditions.

Urinary tract infections in adults (2024)

FAQs

How do adults get urinary tract infections? ›

It's pretty easy to get a urinary tract infection. Bacteria that live in the vagin*, genital, and anal areas may enter the urethra, travel to the bladder, and cause an infection. This can happen during sexual activity when bacteria from your partner's genitals, anus, fingers, or sex toys gets pushed into your urethra.

What is the most common cause of UTI in adults? ›

Bacteria are the most common cause of UTIs, although fungi rarely can also infect the urinary tract. E. coli bacteria, which live in the bowel, cause most UTIs. The female anatomy contributes to women's increased likelihood of contracting a UTI.

What can be mistaken for urinary tract infection? ›

Several other infectious and non-infectious disease processes can cause symptoms that mimic a UTI. These include conditions such as vaginitis, overactive bladder, and kidney stones; some sexually transmitted infections (STIs); and diseases such as bladder cancer.

What is the fastest way a UTI can go away? ›

While UTIs are not medical emergencies, they can lead to complications if left untreated. Additionally, the fastest way to cure a UTI is through antibiotic medication. Antibiotics will kill harmful bacteria. This will reduce symptoms quickly and prevent the infection from worsening.

How much water does it take to flush out a UTI? ›

Patients with urinary tract infection (UTI) are usually advised to drink six to eight glasses (1.5 to 2 liters) of water every day to flush the infection out of the urinary system. The best way to get the infection out of the system is by drinking liquids until the urine is clear and the stream is forceful.

Can UTI go away on its own? ›

Sometimes a UTI will go away on its own. Most people will need antibiotics. Some people may be prescribed a 'delayed antibiotic', meaning they'll be asked only to use it if their symptoms don't go away after a certain amount of time.

What can feel like a UTI but isn't? ›

BPS (interstitial cystitis) can have similar symptoms to long-term or frequent UTIs, so the GP may give you a urine test to check for a UTI. Standard urine tests used in GP surgeries and hospitals may not pick up all infections of the bladder. You may be prescribed antibiotics to see if they help.

Can a man give a woman a UTI? ›

The bacteria that cause UTIs aren't passed from person to person during sex. These bacteria live normally in your body all the time.

Can dehydration cause UTI? ›

Dehydration is a leading risk factor for UTIs.” It's a common misconception that painful urination automatically signals a UTI, she added. Many other conditions can mimic the symptoms of these infections. Definitively diagnosing a UTI requires a urine culture; a urinalysis, or dipstick test, is not enough.

What is a silent bladder infection? ›

An asymptomatic UTI (also called asymptomatic bacteriuria) is when a person has no symptoms of infection but has a significant number of bacteria that have colonized the urinary tract. The condition is harmless in most people and rarely persists, although it does increase the risk for developing symptomatic UTIs.

What is often misdiagnosed as UTI? ›

In fact, research finds that many women with overactive bladder are often misdiagnosed with UTI, resulting in improper treatment and overuse of unnecessary antibiotics.

What mimics a UTI but the test is negative? ›

Painful Bladder Syndrome (PBS)

Some people feel the need to urinate frequently or rush to get to the bathroom. The symptoms range from mild to severe and can happen sometimes or all the time. PBS is not caused by an infection, but it can feel like a urinary tract infection or UTI.

Can UTI be transmitted from woman to man? ›

Men can get UTIs, but they are less likely to do so, and symptoms may be similar to some that women experience. Risk factors include factors like problems emptying the bladder and sexual intercourse—though a man cannot get a UTI from a woman or vice versa.

Why did I start getting UTIs? ›

Bacteria can spread more easily during sexual activity, from your partner's genitals, fingers, tongue or even sex toys. Such activity in that intimate area can also spread your own bacteria from your vagin* or anus into your urethra.

What is the difference between a UTI and a STD? ›

While STDs are spread primarily through sexual contact, UTIs are not generally transmitted through sexual acts (with the exception of anal sex acts). UTIs are most frequently caused when bacteria called E. coli move into the urinary tract.

Top Articles
Latest Posts
Article information

Author: Nathanael Baumbach

Last Updated:

Views: 5656

Rating: 4.4 / 5 (75 voted)

Reviews: 90% of readers found this page helpful

Author information

Name: Nathanael Baumbach

Birthday: 1998-12-02

Address: Apt. 829 751 Glover View, West Orlando, IN 22436

Phone: +901025288581

Job: Internal IT Coordinator

Hobby: Gunsmithing, Motor sports, Flying, Skiing, Hooping, Lego building, Ice skating

Introduction: My name is Nathanael Baumbach, I am a fantastic, nice, victorious, brave, healthy, cute, glorious person who loves writing and wants to share my knowledge and understanding with you.