Urinary Tract Infections in Men: Causes, Symptoms, and Treatment Options

Urinary tract infections in men are less common than in women, but they should be taken seriously because they may signal an underlying urinary problem. With prompt diagnosis and the right treatment, most men recover well and can reduce the chance of future infections.

Overview

Urinary tract infections in men are infections that affect parts of the urinary system, including the urethra, bladder, prostate, and sometimes the kidneys. They are less common in men than in women because the male urethra is longer, which makes it harder for bacteria to reach the bladder. Even so, when a man develops a urinary tract infection, doctors often look carefully for a contributing cause.

Most UTIs are caused by bacteria that enter the urinary tract through the urethra. The infection may remain in the lower urinary tract, such as the bladder, or it may spread upward. In men, a simple burning sensation during urination can sometimes be the first sign of a more complex issue, such as incomplete bladder emptying, an enlarged prostate, or a urinary stone.

Many men respond well to treatment, especially when the infection is diagnosed early. It is important not to ignore symptoms or assume they will pass on their own. Medical evaluation helps confirm the diagnosis, identify the best treatment, and reduce the risk of complications.

Symptoms of a UTI in Men

Symptoms can vary depending on which part of the urinary tract is affected. A lower urinary tract infection often causes discomfort during urination and changes in how often a person needs to pass urine. Some men notice symptoms gradually, while others develop them more suddenly.

Common symptoms may include:

• Burning or pain during urination
• A frequent need to urinate
• A strong or urgent need to urinate
• Passing only small amounts of urine
• Cloudy or foul-smelling urine
• Blood in the urine
• Lower abdominal or pelvic discomfort

If the infection involves the prostate or kidneys, symptoms may be more intense. A man may develop fever, chills, back or side pain, nausea, vomiting, or a general feeling of illness. Older adults may sometimes have less typical symptoms, such as weakness, confusion, or worsening urinary control.

Some symptoms can overlap with other conditions, including prostatitis, sexually transmitted infections, or bladder disorders. For that reason, testing is important rather than relying on symptoms alone.

Causes and Risk Factors

The usual cause of a UTI is bacteria, most often bacteria that normally live in the digestive tract and reach the urinary system. In men, infection is more likely when urine does not flow normally or when bacteria have an easier path into the urinary tract. This is why doctors often think of male UTIs as potentially complicated infections until proven otherwise.

Several factors can increase the risk. An enlarged prostate may slow urine flow and leave urine in the bladder after urination, which gives bacteria more time to grow. Urinary stones can block the flow of urine and irritate the urinary tract. Catheter use, recent urinary procedures, and structural problems of the urinary tract can also raise the chance of infection. In some cases, men with urinary stones may be more prone to repeated infections.

Other risk factors include diabetes, a weakened immune system, dehydration, older age, and a history of previous urinary infections. Sexual activity can also contribute in some cases, especially if it leads to urethral irritation or exposure to bacteria. Conditions affecting the bladder or kidneys may make infection more likely, and recurring infection may lead doctors to investigate broader bladder conditions.

Not every urinary symptom is caused by infection. Pain, frequency, or urgency can also occur with inflammation, prostate problems, or conditions such as interstitial cystitis, although that disorder is different from a bacterial UTI.

How UTIs in Men Are Diagnosed

Diagnosis usually starts with a medical history and physical examination. The doctor will ask about urinary symptoms, fever, back pain, sexual history, medications, previous infections, and whether there are signs of poor bladder emptying. In some cases, a prostate examination may be needed to look for signs of prostatitis or enlargement.

The main test is a urine sample. Urinalysis can show white blood cells, red blood cells, or bacteria, and a urine culture can identify the exact bacteria causing the infection. This helps guide antibiotic choice, especially if the infection is severe, recurrent, or has not improved with initial treatment.

If symptoms are severe, unusual, or repeated, additional tests may be recommended. These can include blood tests, imaging, or referral to a urologist. Imaging may help detect stones, blockages, kidney involvement, or other structural concerns. A doctor may request renal ultrasonography to assess the kidneys and urinary tract, and in selected cases cystoscopy may be used to look inside the bladder and urethra.

Testing is especially important when there is fever, visible blood in the urine, repeated infections, or concern for kidney infection. The goal is not only to confirm the infection, but also to understand why it happened.

Treatment Options

Treatment depends on the location and severity of the infection, the bacteria involved, and whether there is an underlying urinary problem. In most cases, antibiotics are the main treatment. The exact medicine and length of treatment vary and should be determined by a qualified clinician, ideally guided by urine culture results when available.

It is important to complete the full prescribed course, even if symptoms improve early. Stopping too soon can allow bacteria to survive and may increase the chance of recurrence or antibiotic resistance. Doctors may also recommend pain relief, adequate fluid intake, and rest while the infection clears.

If there is a contributing problem such as urinary retention, prostate enlargement, a stone, or a catheter-related issue, that cause may need to be treated as well. Infections that involve the kidneys or prostate, or those associated with high fever or vomiting, may require closer monitoring and sometimes hospital care. Men with repeated infections may be evaluated in dedicated services for urinary infections to guide longer-term management.

Recovery is usually good with timely care. Follow-up may be advised if symptoms do not improve, return soon after treatment, or if test results suggest a resistant organism or a deeper infection.

Prevention and Self-Care

Not all UTIs can be prevented, but some everyday measures may lower risk. Drinking enough fluids can help the body flush bacteria from the urinary tract. Regular urination and not delaying the urge to urinate may also be helpful. Good genital hygiene is sensible, although harsh soaps or irritating products are best avoided.

Men who have recurrent infections may benefit from addressing factors that interfere with bladder emptying. Managing diabetes well, staying hydrated, and reviewing medications with a doctor can also reduce risk in some cases. If a catheter is needed, careful catheter care and regular medical follow-up are important.

Self-care can ease discomfort, but it should not replace medical treatment. Home remedies alone cannot reliably treat a bacterial UTI in men. Anyone with symptoms should speak with a doctor rather than starting leftover antibiotics or delaying evaluation.

When infection keeps coming back, further assessment may be needed to look for hidden causes such as stones, obstruction, prostate disease, or anatomical changes in the urinary tract.

When to See a Doctor

Any man with symptoms of a possible UTI should seek medical advice, particularly if it is a first episode. Because UTIs are less common in men, evaluation is important to confirm the diagnosis and rule out underlying urinary problems. Early treatment often leads to faster relief and helps prevent complications.

Urgent medical attention is needed if symptoms are accompanied by fever, chills, pain in the side or back, nausea, vomiting, weakness, confusion, or inability to urinate. Visible blood in the urine, severe pain, or symptoms that rapidly worsen also deserve prompt review.

Medical review is also important if symptoms return soon after treatment, if there have been repeated infections, or if the person has kidney disease, diabetes, immune suppression, or uses a urinary catheter. In these situations, extra testing may be needed to find the cause and guide treatment.

For international patients who need specialist assessment, Acıbadem Health Point’s multidisciplinary teams in JCI-accredited hospitals diagnose and treat urinary conditions with input from urology, nephrology, imaging, and laboratory specialists.

Frequently asked questions