UTIs in Men: Causes, and Why They Are Taken More Seriously

A 58-year-old walks into a pharmacy, lowers his voice, and asks for “whatever you give women for that burning thing.” The pharmacist, quite rightly, sends him to a doctor instead. He leaves mildly offended. Three days later he is back in that same doctor’s office with a fever of 39°C and a prostate so tender he cannot sit comfortably.

That small scene plays out constantly, and it captures the whole problem. Most men have absorbed the idea that urinary tract infections are a women’s health issue, so when the symptoms arrive they either wait them out or reach for a shortcut. Neither works well, because a UTI in a man is a different clinical animal from the one his partner or sister may have shrugged off in a weekend.

This article explains why men get UTIs less often, why the medical response is more thorough when they do, how to tell an infection from its many look-alikes, and what treatment realistically involves.

Can men get a UTI? Yes, and the numbers tell an interesting story

Men absolutely can get urinary tract infections. What sets them apart is frequency, not possibility. Cleveland Clinic puts the lifetime figures at roughly 60 percent of women and about 12 percent of men experiencing at least one UTI. One in eight is hardly rare, yet the gap is wide enough that the cultural script never got written for men.

That missing script has consequences. A woman with burning on urination usually recognizes the pattern within hours. A man with the same symptom often cycles through other explanations first: he drank too much coffee, he strained something at the gym, he picked up “something” from a partner. Days pass. Bacteria that might have stayed in the bladder get time to climb.

It also helps to be clear about what “urinary tract infection” covers. The tract runs from the kidneys, down the ureters, into the bladder, and out through the urethra. In men it also passes directly through the prostate. An infection can settle at any point along that route: the urethra (urethritis), the bladder (cystitis), the prostate (prostatitis), or the kidneys (pyelonephritis). Doctors use “UTI” as an umbrella term, but the location changes both the symptoms and the seriousness.

If there is one belief worth challenging in this whole subject, it is the quiet assumption that men are immune. That assumption, more than any bacterium, is what turns a manageable bladder infection into a hospital admission.

Why are UTIs less common in men? Anatomy does most of the work

The single biggest protective factor is distance. Nearly all UTIs begin when bacteria that normally live harmlessly in the gut find their way to the opening of the urethra and start moving upward. In women, the urethra is short and its opening sits close to the anus, so that journey is brief. In men, the urethra runs the length of the penis and then through the prostate before reaching the bladder. Bacteria have to travel many times further, against the flow of urine, to cause a bladder infection.

Prostate fluid adds a second line of defense. It contains zinc and other compounds with antibacterial activity, and it bathes the urethra every time a man ejaculates or urinates. Mayo Clinic and Harvard Health both describe this combination of a longer urethra and antibacterial prostatic secretions as the main reason men are spared so often.

The drier environment around the male urethral opening matters too. Moisture helps bacteria multiply and migrate; the anatomy of the penis keeps that area comparatively dry.

Here is the flip side, and it is the pivot of this entire article. The same anatomy that keeps bacteria out means that when an infection does establish itself in a man, something has usually gone wrong with the defenses. Either bacteria were delivered past them (a catheter, for example), or urine is pooling and stagnating because the bladder is not emptying properly, or the organism has found a foothold in the prostate itself. A man’s UTI is rarely just bad luck, which is exactly why doctors look harder for the reason.

Why doctors take a UTI in a man more seriously

In clinical guidelines, UTIs are sorted into “uncomplicated” and “complicated.” An uncomplicated infection is a bladder infection in an otherwise healthy, non-pregnant woman with normal urinary anatomy. Almost everything else is complicated, and by that definition every UTI in an adult man qualifies. This is not alarmism; it is a category that changes the workup.

Three concerns drive the extra caution. The first is the prostate. Because the urethra passes straight through it, bacteria in the bladder can seed the gland, and prostate tissue is harder for many antibiotics to penetrate. An inadequately treated infection can smolder there and re-emerge weeks later as chronic bacterial prostatitis.

The second is what the infection may be signaling. In men, especially over 50, a UTI frequently points to an enlarged prostate that is stopping the bladder from emptying, a kidney stone, a narrowing of the urethra, or undiagnosed diabetes. Treating the infection without asking why it happened invites a repeat.

The third is the kidney. Because male UTIs are more often associated with obstruction, the risk that infection ascends to the kidneys and, from there, into the bloodstream is taken seriously.

The practical difference shows up in the prescription pad and the follow-up. The NHS notes that men are usually given a longer antibiotic course than the short 3-day regimens often used for uncomplicated cystitis in women, commonly around 7 days, and a urine sample is sent for culture rather than treated on symptoms alone. None of this should frighten anyone. It simply means a man’s UTI gets the full attention it deserves.

How do you tell if a male has a UTI? The symptoms to recognize

The classic bladder symptoms are the same in both sexes, and most men recognize them once they know to look. Urination stings or burns. The urge arrives suddenly and often, yet only a small amount comes out. Urine may look cloudy, smell unusually strong, or show a pink or reddish tinge from blood. Many men describe a dull pressure or ache low in the abdomen, just above the pubic bone, that does not fully ease after urinating.

Men, though, have two extra places for infection to declare itself. When the prostate is involved, the picture shifts: a deep ache between the scrotum and the anus, pain at the base of the penis or in the lower back, difficulty starting the stream or a weak, dribbling flow, pain with ejaculation, and often a fever with chills. Acute prostatitis can make a man feel genuinely unwell within hours.

Kidney involvement announces itself higher up. Pain in the flank or side, fever, shaking chills, nausea and vomiting all suggest the infection has climbed beyond the bladder. Mayo Clinic lists these as signs that need same-day medical attention.

One pattern deserves particular emphasis. In older men, the NHS notes that a UTI may show up as new confusion, agitation, unsteadiness or a sudden change in how someone functions, with barely any urinary complaint at all. Families often mistake this for a stroke or the start of dementia. A simple urine test can settle the question quickly, and it is worth asking for.

What causes a UTI in a man? Where the bacteria actually come from

The overwhelming majority of UTIs, in men and women alike, are caused by bacteria that normally live in the bowel. Escherichia coli, a routine resident of the gut, is responsible for most cases according to MedlinePlus and Cleveland Clinic. Other gut organisms account for much of the remainder. These bacteria are not exotic; they are ordinary passengers that have ended up in a place they do not belong.

The usual route is upward from the skin around the urethral opening. Bacteria reach the area through normal life, wiping, sweat, sexual contact, and occasionally gain enough of a foothold to migrate. In a healthy man, urine flow flushes most of them out before they reach the bladder.

Several things defeat that flushing system. A urinary catheter provides a direct highway past the urethra’s defenses, and catheter-associated infection is one of the most common ways men acquire UTIs in hospitals and care settings. Incomplete bladder emptying, most often from an enlarged prostate, leaves a reservoir of stale urine in which bacteria multiply undisturbed. Kidney stones can trap bacteria and irritate the lining. Any recent procedure involving the urinary tract can introduce organisms.

Less commonly, bacteria arrive from the bloodstream rather than from below, seeding the kidney during an infection elsewhere in the body.

Two things do not cause UTIs, despite persistent folklore. Toilet seats do not transmit them. And a UTI is not a sexually transmitted infection, even though sex can physically move bacteria toward the urethra. That distinction matters enough that it gets its own section below.

Who is most at risk? Age changes the picture completely

A UTI in a 25-year-old man and a UTI in a 75-year-old man are, statistically, different events with different likely explanations.

In younger men, infection is uncommon enough that doctors often look for a specific trigger. Unprotected anal intercourse is a recognized risk because it brings the urethra into direct contact with gut bacteria. A structural quirk present since birth, a narrowing of the urethra from an old injury, or a first sign of a kidney stone may also be behind it. Harvard Health notes that men who are uncircumcised have a somewhat higher risk, since the foreskin can harbor bacteria, though the effect is modest in adults and is not a reason to seek circumcision on its own.

After about 50, the prostate takes center stage. Benign enlargement of the gland squeezes the urethra, the bladder struggles to empty completely, and the urine left behind becomes a culture medium. This is the single most common backdrop to male UTIs in later life.

Diabetes raises risk at any age through two mechanisms: sugar in the urine feeds bacteria, and long-standing nerve damage can weaken the bladder’s ability to contract fully. Spinal cord injury and other neurological conditions produce the same emptying problem. Catheter use, a weakened immune system, and kidney stones round out the list Mayo Clinic gives.

Why does this matter to the reader? Because the age and risk profile shape what a doctor will investigate. A first UTI in a healthy young man may prompt an STI screen and little else. The same infection in a 70-year-old should prompt a conversation about how well his bladder empties.

Can a man get a UTI from sex? And can he pass one to a partner?

Sex is a mechanical event, and mechanics can move bacteria. Intercourse can push organisms from the skin toward the urethral opening, and anal intercourse without a condom exposes the urethra directly to gut bacteria. So yes, a UTI can follow sex, and a cluster of symptoms in the days after a new sexual encounter is worth taking seriously.

That is different from saying a UTI is caught from a partner. The bacteria involved are already living on and in both people; a partner with a UTI is not “contagious” in the sense that a sexually transmitted infection is. The NHS is explicit that UTIs are not classified as STIs.

The catch, and it is an important one, is that STIs cause almost identical early symptoms. Gonorrhea and chlamydia both produce urethritis: burning, discharge, and discomfort on urination. A man who assumes he has a “UTI from sex” may actually have an STI that needs different testing and a conversation with partners. Any urinary symptoms after unprotected sex with a new partner justify an STI screen alongside the urine test. Doctors routinely do both, and asking for it carries no judgment.

Does urinating after sex help men the way it is often recommended to women? The logic is sound, flushing the urethra before bacteria settle, but the evidence in men is thin. It is harmless and reasonable; it is not a guarantee. Condoms, particularly for anal sex, have a much clearer protective rationale against both UTIs and STIs.

What is mistaken for a UTI in men? The common look-alikes

Burning, urgency and pelvic discomfort are not owned by any single diagnosis. Several conditions imitate a UTI closely enough that men are treated for infection when none exists, or, more worryingly, a real problem is dismissed as “just a UTI” until it stops responding. Knowing the impostors helps a man give his doctor a sharper history.

Condition	How it overlaps with a UTI	Clues it may be something else
Sexually transmitted urethritis	Burning on urination, discharge	New partner, visible discharge from the tip, negative urine culture
Prostatitis (bacterial or non-bacterial)	Pelvic ache, urgency, poor flow	Pain between scrotum and anus, painful ejaculation, symptoms lasting months
Kidney stones	Blood in urine, flank pain, urgency	Pain comes in severe waves and moves; no fever unless infection is also present
Enlarged prostate / overactive bladder	Frequency, urgency, night-time urination	Symptoms build over months, no burning, urine tests repeatedly clear
Urethral stricture	Weak stream, straining, recurrent infections	Long history of slow flow, often after injury or a past procedure
Bladder pain syndrome	Pelvic pressure, frequency	Pain eases after urinating, cultures consistently negative
Blood in urine from other causes	Pink or red urine	Painless bleeding, especially in smokers or men over 50, needs its own evaluation

The last row deserves a plain statement. Visible blood in the urine without pain is never something to self-diagnose as an infection. Mayo Clinic and the NHS both list it as a symptom that requires prompt assessment regardless of what the dipstick shows. Most causes turn out to be benign, and the ones that are not respond far better to early attention.

Prostatitis or UTI? Why the distinction matters more than men expect

Because the prostate sits directly on the urinary highway, it is often impossible to say at the outset whether a man’s infection is “in the bladder” or “in the prostate.” The NHS describes prostatitis in two broad forms, and they behave very differently.

Acute bacterial prostatitis is a sudden, often dramatic illness. Fever, chills, severe pelvic or lower-back pain, difficulty passing urine, and a general feeling of being ill arrive together, sometimes within a day. It is uncommon but serious, because bacteria trapped in an inflamed gland can spill into the bloodstream. Men with these features should be seen the same day.

Chronic prostatitis is a slower, more frustrating story. The NHS defines it as symptoms lasting at least 3 months. In a minority of cases bacteria can be grown from prostate fluid or urine (chronic bacterial prostatitis), and these men typically have repeated UTIs caused by the same organism, each course of antibiotics clearing the bladder but not the reservoir in the gland. In the larger group, no bacteria are found at all; this is called chronic prostatitis/chronic pelvic pain syndrome, and antibiotics do not help because there is nothing for them to kill.

Why labor the point? Because the treatment length differs. A bladder infection in a man is usually treated for about a week. When the prostate is clearly involved, the NHS notes courses commonly run for several weeks, precisely because antibiotic penetration into prostate tissue is slower. Stopping early because the burning has gone is how bacterial prostatitis becomes chronic. The prescribing clinician sets the duration; the man’s job is to finish it.

When to see a doctor about UTI symptoms as a man

This is the section that should not be skipped. For women with mild, familiar cystitis symptoms, self-care for a day or two is sometimes reasonable. The NHS advises differently for men: any man with UTI symptoms should see a doctor rather than wait, because the infection is classed as complicated and needs a urine culture and a proper course of treatment.

Seek same-day or urgent care if any of the following appear alongside urinary symptoms:

• A fever, or feeling hot, shivery and unwell.
• Pain in the side, flank or lower back, which suggests kidney involvement.
• Nausea or vomiting, especially if it stops you keeping fluids down.
• Visible blood in the urine.
• Severe pain deep in the pelvis or between the scrotum and anus.
• Difficulty passing urine, or an inability to pass any despite a full bladder.
• New confusion, drowsiness or a sudden change in behavior in an older man.

Call emergency services if symptoms escalate toward sepsis: a very high or very low temperature, rapid breathing, a racing heart, mottled or bluish skin, slurred speech, or a feeling that something is dramatically wrong. Sepsis from a urinary source is uncommon, but it is one of the specific reasons clinicians treat male UTIs with respect.

Two quieter triggers also warrant a return visit. If symptoms have not begun to ease within about 48 hours of starting antibiotics, the NHS advises contacting the prescriber, since the organism may not be sensitive to the chosen drug. And a second UTI within months of the first should prompt a look at the underlying cause rather than another prescription on its own.

How is a UTI diagnosed in men? Why the urine culture is not optional

Diagnosis starts with a conversation and an examination. The doctor will ask about the timing of symptoms, sexual history, past urinary problems, and any change in flow. A hand on the abdomen checks for bladder tenderness or a bladder that is not emptying; in some cases a gentle rectal examination assesses whether the prostate is enlarged, tender or hot to the touch, the hallmark of acute prostatitis.

Then comes the urine. A midstream sample, collected after the first part of the stream has been passed, gives the cleanest result. A dipstick test in the office can detect white blood cells, nitrites produced by certain bacteria, and blood within minutes. It is a useful screen, but in men it is the second test that matters most.

The urine culture grows whatever organism is present and, crucially, reports which antibiotics it is sensitive to. Results take a couple of days. Because male UTIs are classed as complicated, MedlinePlus and the NHS describe culture as standard practice rather than a step reserved for difficult cases. Treatment often begins before the result returns, then gets adjusted if the laboratory shows the bacterium is resistant to the first choice.

Where there is any possibility of an STI, a swab or first-catch urine sample is tested for chlamydia and gonorrhea at the same time.

Further tests depend on the man and the pattern. An ultrasound scan after urinating measures how much urine the bladder retains, a direct window onto the prostate’s effect on emptying. Kidney imaging looks for stones or blockage when flank pain or repeated infections suggest it. For blood in the urine or infections that keep returning, a urologist may recommend cystoscopy, a look inside the bladder with a thin camera. The treating clinician decides which of these fit the situation.

How does a male get rid of a urinary tract infection? Treatment explained honestly

The direct answer is antibiotics. A bacterial UTI in a man will not reliably clear on its own, and the risk of it spreading to the prostate or kidneys while waiting is the reason guidelines do not recommend a watch-and-wait approach for men. Antibiotics work by killing bacteria outright or blocking their ability to multiply, giving the immune system and the flushing action of urine the upper hand.

The choice of drug rests with the prescriber and is guided by the culture result, local resistance patterns, kidney function, allergies, and whether the prostate appears involved. What a man can reasonably expect is the shape of the course. The NHS indicates that men with a bladder infection are commonly treated for around 7 days, and that symptoms usually start to improve within a few days of the first dose. When acute prostatitis is diagnosed, courses of several weeks are typical because antibiotics reach prostate tissue slowly.

Feeling better is not the same as being cured. The burning often fades within 48 to 72 hours, long before the last bacteria are cleared. Finishing the prescribed course is the single most useful thing a man can do to prevent a relapse or a slide into chronic prostatitis.

Supportive measures help with comfort rather than cure. Drinking enough fluid to keep urine pale dilutes irritants and encourages flushing. Over-the-counter pain relief can ease the ache and bring a fever down; a pharmacist can advise on what is suitable alongside any other medicines. Rest matters when there is a fever.

Men who are vomiting, cannot pass urine, or show signs of a kidney or bloodstream infection may need a short hospital stay for intravenous antibiotics and fluids. That is a routine escalation, not a sign of failure.

What does not work: cranberry products, baking soda, and “flushing it out” with water alone. The NHS notes there is no good evidence these treat an established infection. They are not dangerous; they are simply not treatment.

After the infection: recurrence, follow-up and what genuinely prevents another one

A single, well-treated UTI in a man usually ends there. The men who need to think harder are those whose infection comes back. Recurrence is a signal, not a nuisance, and the most effective “prevention” is almost always identifying what let bacteria in the first time.

For older men, that often means addressing an enlarged prostate that is leaving urine behind. Improving bladder emptying, whether through medication a urologist may discuss or, in selected cases, a procedure, removes the stagnant pool where bacteria thrive. For men with diabetes, tighter glucose control lowers sugar in the urine and protects bladder nerves over time. Kidney stones that harbor bacteria may need removing. Men who use catheters benefit most from meticulous catheter care and from discussing whether the catheter is still necessary.

Everyday habits play a supporting role. Drinking enough fluid through the day keeps urine flowing; the goal is a pale straw color rather than a fixed number of glasses. Urinating when the urge arrives rather than holding on for hours reduces the time bacteria sit in the bladder. Some men with emptying problems find “double voiding”, waiting a moment after urinating and trying again, helps. Keeping the genital area clean and dry, and using condoms for anal sex, both reduce the bacterial load reaching the urethra.

Where the evidence is weak, honesty is better than hope. Cranberry supplements have been studied mainly in women and the results are mixed; the NHS does not recommend them as prevention. Probiotics have no convincing evidence in men. Circumcision is not advised purely to prevent UTIs in adults.

The opinion this article has been building toward is simple. A UTI in a man is worth a proper look because it so often points at something fixable. Treat the infection, yes, but ask why it happened. That question, asked once, prevents more infections than any supplement ever will.

Frequently asked questions

Can men really get a UTI, or is it always something else?

Men can and do get genuine urinary tract infections; roughly one in eight will have one during his life. The infection is caused by the same gut bacteria responsible for UTIs in women, usually reaching the bladder by traveling up the urethra. Because male anatomy makes this harder, a confirmed UTI in a man often has an underlying reason, such as an enlarged prostate or incomplete bladder emptying, which is why doctors investigate rather than simply treat.

How do you tell if a male has a UTI?

The most reliable signs are burning or stinging when urinating, a frequent and urgent need to go with little output, cloudy or strong-smelling urine, and pressure low in the abdomen. Men may also notice deep pelvic pain, difficulty starting the stream or fever if the prostate is involved. A urine test confirms the diagnosis; symptoms alone cannot distinguish a UTI from an STI or prostatitis, so a doctor’s assessment is needed.

What causes a UTI in a guy?

Most male UTIs are caused by bacteria from the bowel, most often Escherichia coli, that reach the opening of the urethra and move upward. Anything that lets stale urine sit in the bladder, especially an enlarged prostate, kidney stones or nerve damage from diabetes, gives those bacteria time to multiply. Catheters and recent urinary procedures can introduce bacteria directly. Toilet seats do not cause UTIs, and they are not a sexually transmitted infection.

What is commonly mistaken for a UTI in men?

Sexually transmitted urethritis from chlamydia or gonorrhea is the most frequent impostor, producing the same burning and discomfort. Prostatitis, kidney stones, an enlarged prostate, overactive bladder and bladder pain syndrome all overlap too. Painless blood in the urine is sometimes labeled an infection when it needs separate evaluation. A negative urine culture despite persistent symptoms is the clearest hint that something other than a simple UTI is responsible.

How does a male get rid of a urinary tract infection?

A bacterial UTI in a man is treated with a course of antibiotics chosen by a clinician, ideally guided by a urine culture. Men are usually treated for about a week, and longer if the prostate is infected. Symptoms typically ease within a few days, but the full course must be finished to prevent relapse. Fluids and over-the-counter pain relief help with comfort. Home remedies such as cranberry products do not clear an established infection.

Why are UTIs taken more seriously in men than in women?

Because male anatomy normally protects against infection, a UTI in a man usually means a defense has failed or an underlying problem exists. The urethra also runs through the prostate, so infection can lodge in the gland and become chronic if under-treated. Guidelines therefore class every adult male UTI as complicated, prompting a urine culture, a longer antibiotic course and a search for causes such as prostate enlargement or poor bladder emptying.

Can a man get a UTI from having sex?

Sex can physically move bacteria toward the urethra, and unprotected anal intercourse in particular exposes it to gut bacteria, so a UTI can follow sexual activity. This is different from catching an infection from a partner: UTIs are not sexually transmitted. Because STIs cause nearly identical early symptoms, any burning or discharge after sex with a new partner should be tested for both a UTI and STIs at the same visit.

How long does a UTI last in a man?

With appropriate antibiotics, symptoms of a bladder infection usually begin to improve within a few days, and men are commonly treated for around seven days. When the prostate is infected, courses of several weeks are typical because antibiotics reach prostate tissue slowly. Without treatment, a male UTI is unlikely to resolve reliably and may spread. If symptoms have not eased after about 48 hours on treatment, the prescriber should be contacted.

Can a UTI in a man go away on its own?

Occasionally mild bladder irritation settles without treatment, but guidelines do not recommend waiting in men. The risk that bacteria climb to the prostate or kidneys, and the likelihood that an underlying cause is present, mean a confirmed male UTI is normally treated with antibiotics and investigated. Drinking more water may ease symptoms but does not cure an established infection. Any man with UTI symptoms should see a doctor rather than self-manage.

When should a man go to the hospital for a UTI?

Seek emergency care for fever with shaking chills, pain in the flank or side, vomiting that prevents keeping fluids down, inability to pass urine, or signs of sepsis such as rapid breathing, racing heart, mottled skin or confusion. New confusion in an older man with urinary symptoms also warrants urgent assessment. These features suggest the infection has reached the kidneys or bloodstream and may need intravenous antibiotics.

References

• NHS – Urinary tract infections (UTIs)
• NHS – Prostatitis
• Cleveland Clinic – Urinary Tract Infections
• MedlinePlus – Urinary tract infection – adults

This article is for general information only and is not a substitute for professional medical advice. Please consult a qualified doctor about your individual situation.