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A UTI should never be ignored because it can lead to upstream complications, like pyelonephritis. Another benefit of getting it checked out early on? Bladder cancer and urinary tract infections (UTIs) share many overlapping symptoms, which can sometimes lead to a delayed diagnosis.

​Burning when you urinate. Feeling like you have to go every few minutes. Suddenly needing to find a bathroom. Maybe there’s even blood in your urine. These are all recognizable symptoms that can happen with a urinary tract infection (UTI).

While much less common than a UTI, those same symptoms can also occur with bladder cancer.

So, how can you tell when a UTI may be more than a UTI? And when should bladder cancer enter the conversation? The answer starts with understanding what causes a UTI, what the two conditions have in common, and when urinary symptoms deserve a closer look.

Understanding a UTI

​A UTI happens as a result of bacteria entering the urinary tract and multiplying. The type of bacteria is not typically foreign; they’re often bacteria that normally live on the skin or in the digestive tract. Escherichia coli (E. coli) is the most common cause of a UTI, although other types of bacteria can cause infections as well. Most UTIs affect the bladder, although an infection can also involve the urethra or kidneys.

Women are more prone to developing a UTI than men because women have a shorter urethra and the opening is closer to the rectum, making it easier for bacteria to reach the bladder. Sexual activity, previous UTIs, menopause, pregnancy, incomplete bladder emptying, certain urinary tract abnormalities, kidney or bladder stones, and conditions that affect the immune system can also increase the risk. UTIs are also more common among older adults and young children.

A UTI is a bacterial infection that affects any part of the urinary tract.

The symptoms depend somewhat on where the infection occurs. Burning and irritation are associated with the urethra. A bladder infection may cause burning or pain during urination, frequent urination, a sudden urge to urinate, pelvic or lower abdominal discomfort, or the feeling that you need to urinate even when little comes out. Blood can also appear in the urine.

If bacteria move from the bladder up through the ureters and into the kidneys, the infection can develop into a kidney infection, or pyelonephritis. Fever, chills, nausea, vomiting, and pain in the back or side can be signs that an infection has moved beyond the bladder. A kidney infection can become serious and may require more intensive treatment, including intravenous antibiotics in some cases.

Urinary symptoms are worth paying attention to, particularly when they are severe, don’t improve with treatment, or keep coming back. A UTI may be straightforward to treat, but persistent or recurring symptoms can cause additional complications.

Where a UTI Overlaps with Bladder Cancer

A urinary tract infection and bladder cancer are very different conditions, but they can produce many of the same urinary symptoms.

Burning or pain with urination, frequent urination, a sudden urge to urinate, pelvic discomfort, and even blood in the urine can occur with either condition; symptoms alone aren’t always enough to tell the difference. Early bladder cancer can cause urinary changes that look a lot like an infection, and initially attributing symptoms to a UTI can sometimes delay the cancer diagnosis.

Blood in the urine (hematuria) is never a sign that things are okay and deserves immediate attention. Sometimes the amount of blood is too small to see and is found only during a urine test.  Hematuria (blood in the urine) is one of the most common signs of bladder cancer and can also make the urine appear pink, red, or brown. But it’s also a hallmark of UTIs, kidney stones, and other urinary conditions.

Blood in the urine is one of the most common symptoms of bladder cancer, but it doesn’t always occur.

There is also some speculation of a connection between recurrent UTIs and bladder cancer beyond common symptoms: that chronic or recurrent urinary infections could make someone more vulnerable to developing bladder cancer. In fact, irritative lower urinary tract symptoms and hematuria are risk factors that most urologists look for. This does not mean that a typical UTI causes bladder cancer, but it is a risk factor. Most people who develop UTIs will not go on to develop bladder cancer, and researchers are still working to understand how much of the association is related to chronic inflammation, underlying urinary problems, or other factors.

It can work in the other direction also, where a bladder tumor may interfere with the normal function or protective lining of the bladder, potentially making infections more likely. So, in some cases, what appears to be a series of recurrent UTIs may have another underlying cause that has not yet been identified.

Bladder cancer can also present with no symptoms, or the person may not notice anything unusual. In some cases, blood in the urine is microscopic and can only be detected on a urine test, and there is no standard screening test recommended for people at average risk who seem to have no symptoms. Contrary to the gender bias of having a UTI, bladder cancer is also more common in men than in women.¹

Because an untreated UTI can lead to kidney infection, it’s best to see a urologist as soon as possible. And even though bladder cancer is the fourth most common cancer in men and eleventh in women, and most UTIs will likely just be a UTI, urinary symptoms have several possible causes, and persistent, recurrent, or unexplained symptoms shouldn’t automatically be written off as another infection.²

Diagnosis and Treatment

A UTI can become serious, and online symptom checkers aren’t a reliable resource; you need an in-person evaluation.

For a suspected UTI, testing often starts with a urinalysis to look for signs of infection, including white blood cells, red blood cells, and bacteria. A urine culture can identify the specific bacteria causing the infection and help determine which antibiotic is most appropriate. If UTIs keep coming back, your doctor may also look for an underlying reason, such as incomplete bladder emptying, kidney or bladder stones, or another problem affecting the urinary tract.

Most uncomplicated bacterial UTIs can be treated with antibiotics. More serious infections, particularly those that have reached the kidneys, may require intravenous antibiotics.

Bladder cancer requires a different type of evaluation. Urine and blood tests may be used as part of the workup, and imaging such as a CT scan or ultrasound may be recommended depending on the situation. One of the most important tests is a cystoscopy, which allows a urologist to look directly inside the bladder using a thin camera passed through the urethra. If an abnormal area is found, tissue can be removed and examined under a microscope to determine whether cancer cells are present.

Bladder cancer treatment depends on the type of cancer, how deeply it has grown into the bladder, and whether it has spread elsewhere. Treatment may include removing a tumor through a procedure called transurethral resection of bladder tumor (TURBT), medication placed directly into the bladder, surgery to remove part or all of the bladder, chemotherapy, radiation therapy, immunotherapy, targeted therapy, or a combination of these treatments.

The important thing is not to ignore urinary symptoms simply because they seem familiar or common. A UTI is common and usually treatable, but symptoms that persist, repeatedly return, or occur without a clear explanation need to be re-evaluated. Blood in the urine also deserves medical attention.

If you’re experiencing persistent urinary symptoms or have questions about blood in your urine, schedule an appointment. Georgia Urology provides evaluation and treatment for a wide range of urinary and bladder conditions, including UTIs and bladder cancer. Getting the right diagnosis is the first step toward getting the right treatment.

References:

1. American Cancer Society. (2026, January 13). Key Statistics for Bladder Cancer. Www.Cancer.Org. https://www.cancer.org/cancer/types/bladder-cancer/about/key-statistics.html.
2. American Urological Association. (2025). Microhematuria: AUA/SUFU Guideline (2025). Www.Auanet.Org. https://www.auanet.org/guidelines-and-quality/guidelines/microhematuria.
3. National Cancer Institute. (2025, April 22). Incidence and Mortality. Cancer.Gov. https://training.seer.cancer.gov/bladder/incidence.html.

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