A urinary tract infection, commonly called a UTI, is an infection that can affect different parts of the urinary system. UTIs are common and can cause uncomfortable symptoms such as burning during urination, frequent urination, or lower abdominal discomfort.
Although many UTIs can be treated effectively, ignoring symptoms may allow the infection to worsen or spread to the kidneys in some cases. Therefore, recognising the symptoms early and seeking appropriate medical care is important.
What Is a Urinary Tract Infection?
The urinary tract includes the:
- Kidneys
- Ureters
- Bladder
- Urethra
A UTI occurs when microorganisms, usually bacteria, enter and multiply within part of the urinary tract.
Most infections involve the lower urinary tract, particularly the bladder or urethra. However, an infection can sometimes affect the kidneys, which may require more urgent medical attention.
What Are the Common Symptoms of a UTI?
UTI symptoms can vary depending on the part of the urinary tract affected.
Common symptoms include:
- Burning or pain while urinating
- A frequent need to urinate
- A sudden urge to urinate
- Passing only a small amount of urine
- Cloudy urine
- Strong-smelling urine
- Blood in the urine
- Lower abdominal discomfort or pressure
- Pelvic discomfort
Some people may experience only a few symptoms. Therefore, the absence of one symptom does not necessarily rule out a UTI.
Can a UTI Cause Burning While Urinating?
Yes. A burning or stinging sensation while passing urine is one of the most common symptoms of a UTI.
However, burning during urination can also occur due to other conditions, including irritation, certain sexually transmitted infections, vaginal infections, or other urinary problems.
Therefore, persistent or severe symptoms should be medically evaluated rather than self-diagnosed.
Why Does a UTI Cause Frequent Urination?
A UTI can irritate the bladder and urinary tract. As a result, a person may feel the need to urinate more often or more urgently.
However, frequent urination can also occur with conditions such as:
- Diabetes
- Pregnancy
- Overactive bladder
- Certain medicines
- Other urinary conditions
Therefore, frequent urination should be assessed in the context of other symptoms.
Can a UTI Cause Blood in the Urine?
Yes. Some UTIs can cause blood to appear in the urine.
The urine may look:
- Pink
- Red
- Brownish
However, blood in the urine can have many different causes and should not automatically be assumed to be caused by a UTI.
Therefore, visible blood in the urine should be medically assessed.
What Causes a UTI?
Most UTIs are caused by bacteria entering the urinary tract.
A common cause is bacteria from the bowel area entering the urethra and travelling upward into the bladder.
Several factors can increase the likelihood of developing a UTI, including:
- Sexual activity
- Pregnancy
- Urinary catheters
- Kidney stones
- Incomplete bladder emptying
- Urinary tract abnormalities
- An enlarged prostate
- Menopause-related changes
- Diabetes
- A weakened immune system
However, having one or more risk factors does not mean that a person will definitely develop a UTI.
Are Women More Likely to Get UTIs?
Yes. UTIs are generally more common in women.
One reason is anatomical. The female urethra is shorter and located closer to areas where bacteria commonly live, making it easier for bacteria to reach the bladder.
However, men and children can also develop UTIs and should receive medical evaluation when symptoms occur.
Can Men Get UTIs?
Yes. Although UTIs are less common in men, they can occur.
In men, urinary symptoms may sometimes be associated with:
- Prostate enlargement
- Urinary obstruction
- Kidney stones
- Catheter use
- Other urinary tract conditions
Therefore, men with symptoms of a UTI should seek appropriate medical assessment.
Can Sexual Activity Cause a UTI?
Sexual activity can increase the risk of UTIs in some people because bacteria may be moved toward the urethra during sexual activity.
However, a UTI is not necessarily a sexually transmitted infection.
Maintaining good personal hygiene and urinating after sexual activity may be recommended as part of general prevention measures for some people who experience recurrent UTIs.
Can Pregnancy Increase the Risk of a UTI?
Yes. Changes that occur during pregnancy can increase the likelihood of urinary infections.
Because UTIs during pregnancy may require specific treatment and monitoring, pregnant individuals who experience urinary symptoms should contact their healthcare provider.
Do not take antibiotics during pregnancy without medical advice.
Can Diabetes Increase the Risk of UTIs?
Yes. People with diabetes may have a higher risk of developing infections, including UTIs.
Poorly controlled blood sugar can affect the body’s ability to fight infections and may contribute to conditions that increase infection risk.
Therefore, managing diabetes and seeking prompt medical care for urinary symptoms can be important.
Can Kidney Stones Cause a UTI?
Kidney stones can sometimes contribute to urinary tract infections by blocking or slowing the normal flow of urine.
When urine does not drain normally, bacteria may have a greater opportunity to multiply.
Kidney stones can also cause symptoms such as:
- Severe side or back pain
- Blood in the urine
- Nausea
- Vomiting
If these symptoms occur with fever or urinary symptoms, urgent medical evaluation may be needed.
How Is a UTI Diagnosed?
Doctors usually consider a person’s symptoms and medical history.
A urine test may be recommended to look for signs of infection. In some cases, a urine culture may be used to identify the bacteria causing the infection and determine which antibiotic may be appropriate.
Additional tests may be recommended for recurrent, severe, complicated, or unusual infections.
What Tests May Be Recommended for a UTI?
Depending on the symptoms and medical history, investigations may include:
- Urine routine examination
- Urine culture
- Blood tests in more severe cases
- Ultrasound or other imaging when appropriate
- Tests to identify urinary obstruction or stones
The type of investigation depends on the person’s symptoms and overall health.
How Is a UTI Treated?
Treatment depends on the cause, severity, and location of the infection.
Doctors may recommend:
- Antibiotics when a bacterial UTI is diagnosed and treatment is appropriate
- Adequate fluid intake when medically suitable
- Medicines to manage pain or discomfort
- Further treatment for underlying conditions such as stones or urinary obstruction
It is important to take antibiotics exactly as prescribed.
Do not use leftover antibiotics or take antibiotics prescribed for someone else. Using the wrong medicine may not treat the infection and can contribute to antibiotic resistance.
